Q11U563CRLSSI SMITHSONIAN INSTITUTIONUNITED STATES NATIONAL MUSEUMBulletin 161 THE FORAMINIFERA OF THETROPICAL PACIFIC COLLECTIONS OFTHE "ALBATROSS," 1899-1900 Part 3.?HETEROHELICIDAE and BULIMINIDAE BYJOSEPH AUGUSTINE CUSHMAN UNITED STATESGOVERNMENT PRINTING OFFICEWASHINGTON : 1942 For sale by the Superintendent of Documents, Washington, D. C. - Price 20 cent! CONTENTS PageIntroduction 1Family Heterohelicidae 2Subfamily Bolivinitinac 2Genus Boliviniia 2quadrilatera 2Genus Bolivinella 3folia 3var. ornata 5margaritacea 5Subfamily Eouvigerininae 5Genus Nodogenerina 5spinata 6milletti 6Family Buliminidae 7Subfamily Turrilininae 7Genus Buliminella 7milletti 7madagascarensis var. spicata 8Genus Buliminoides 8williamsoniana 8Genus Robertina 9subcylindrica . 9Subfamily Bulimininae 10Genus Bulimina 10rostrata 10elongata var. subulata 11fijiensis 11Subfamily Virgulininae 12Genus Virgulina 12schreibcrsiana 12complanata 13pauciloculata 14fijiensis 14Genuri Bolivina 15vadescens 15hanikeniana 15spinea 16robusta 17subangularis 18var. lineata 19rhomboidalis 19toriuosa 20compacta 20occanica 24nitida 25seminuda 26spinescens 27capitata 28globulosa 28III IV BULLETIN 161, UNITED STATE& NATIONAL MUSEUMFamily Buliminidae?Continued.Subfamily Virgulininae?Continued.Genus BoUvina?Continued. Pagesubtenuis 29pseudopygmaea 29striatula 30subreticulata 31variabilis 32cf . paula 33abbreviata 33ligularia 34Genus Loxostoma 34limbatum 35var. costulatum 36lobatum 36convallarium 37vertebrale 37karrerianum var. carinatum 38mayori 38rostrum 39Subfamily Reussellinae 40Genus Reussella 40spinulosa 40Genus Trimosina 43orientalis 43perforata 44simplex 44Genus Mimosina 45pacifica 45Genus Chrysalidinella 45dimorpha 46Subfamily Uvigerininae 46Genus Uvigerina 46ampullacea 46porrecta 48war. fimbriata 49proboscidea 49var. vadescens 50Genus Hopkinsina 51pacifica 51Genus Siphogenerina 52virgula 52dimorpha var. pacifica 53columellaris 54raphana 55Genus Angulogerina 57albatrossi var. ornata 57occidentalis 68Genus Trifarina 58bradyi 59Genus Siphonodosaria 60sp. (?) 61Explanation of plates 61Index 65 ILLUSTRATIONS Plate 1.2.3.4.5.6-9.10.11.12.13.14.15. SpecSpecSpecSpec:SpecSpecSpecSpecSpecSpecSpecSpec Plates (following page 64) es of Bolivinita.es of Bolivinella and Nodogenerina.es of Buliminella, Buliminoides, Bulimma, and Roberiina.es of Virgulina.es of Virgulina and Bolivina.es of Bolivina.es of Loxostoma.es of Loxostoma and Reussella.es of Trimosina and Mimosina.es of Chrysalidinella and Uvigerina.es of Uvigerina.es of Hopkinsina, Siphogenerina, Angulogerina, Trifarina, andSiphon odosaria. THE FORAMINIFERA OF THE TROPICAL PACIFICCOLLECTIONS OF THE "ALBATROSS," 1899-1900Part 3. ? Heterohelicidae and BuliminidaeBy Joseph Augustine CushmanINTRODUCTIONThis paper is the third part of a work the intent of which is to de-scribe and illustrate the Foraminifera of the tropical Pacific collectedby the United States Bureau of Fisheries steamer Albatross, tosretherwith certain other related material from shallow water of the sameregion. Part 4 wUl complete the work and will take up in systematicorder the families beginning with the Rotaliidae. Readers are referredto Part 1, p. 3, for a map showing the general route of the Albatrosstlirough the South Pacific.Some interesting relationships have been noted m these faunas inwhich are living representatives of species known hitherto only fromthe late Tertiary of other regions. The number of distinctive speciesin this area is large, which is not surprising when the remoteness fromother shallow-water material is taken into consideration and also thevery small amount of work that has been done on the deeper-waterdeposits of the Pacific region.Table 1.?Abbreviations used in the tables in this report to denote the character ofthe bottoms of the stations Abbreviation 2 BULLETIN 161, UNITED STATES NATIONAL MUSEUMFamily HETEROHELICIDAESubfamily BolivinitinaeGenus BOLIVINITA Cushman, 1927Bolivinita Cushman, Contr. Cushman Lab. Foram. Res., vol. 2, pt. 4, p. 90, 1927.Genoholotype.?Textularia quadrilatera Schwager.Test with chambers biserial, periphery and broader sides all con-cave, with strongly developed angles giving a quadrate end view tothe test; wall calcareous, perforate; aperture large, at base of innermargin in the m.edian line. Upper Cretaceous to Recent.BOUVINITA QUADRILATERA (Schwager)Plate 1Textularia quadrilatera Schwageb, A''omro-Exped., Geol. Theil, vol. 2, p. 253, pi.7, fig. 10, 1866.?H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, p. 358,pi. 42, figs. 8-12, 1884.?Flint, Rep. U. S. Nat. Mus. for 1897, p. 283, pi.28, fig. 3, 1899.?MiLLETT, Journ. Roy. Micr. Soc, 1899, p. 559, pi. 7, fig.3.? Bagg, Proc. U. S. Nat. Mus., vol. 34, p. 131, 1908.?Cushman, U. S.Nat. Mus. Bull. 71, pt. 2, p. 24, figs. 42-44 (in text), 1911.?Yabe andHanzawa, Jap. Journ. Geol. Pal., vol. 4, p. 50, 1925 (1926).BoUvina quadrilatera Wright, Proc. Roy. Irish Acad., ser. 3, vol. 1, p. 475, 1891. ? Cushman, U. S. Nat. Mus. Bull. 104, pt. 3, p. 44, pi. 8, fig. 2, 1922.Bolivinita quadrilatera Makiyama, Mem. College Sci. Kyoto Imp. Univ., ser. B,vol. 7, No. 1 (art. 1), p. 42 (list), 1931.?Cushman, B. P. Bishop Mus.Bull. 119, p. 121, pi. 14, figs. 12a, 6, 1934. ? Chapman and Parr, AustralasianAntarctic Exped., ser. C, vol. 1, pt. 2, p. 101, 1937. ? Asano, Journ. Geol.Soc. Japan, vol. 45, No. 538, p. 607, pi. 16 (5), fig. 17, 1938.Test elongate, slender, very slightly tapering, in end view quadri-lateral, the angles usually carinate; chambers high and narrow, run-ning back obliquely on the outer border, compressed; the initial endof the test often with a stout spine, occasionally with several smallspines or smooth and broadly rounded, the early chambers sometimeswith one or more longitudmal raised costae for a short distance ; wallhyaline, distinctly perforate; aperture at one side near the distal endof the chamber, sometimes obliquely elongate, but somewhat varia-ble. Length, up to 1.25 mm.This species was originally described from the Pliocene of Kar Nico-bar by Schwager. It is a characteristic species of the present Indo-Pacific region although it apparently also occurs in the Atlantic.The Atlantic specimens, however, as a rule seem to lack the basalspine, and it may be that other differences may make it possible toseparate the Atlantic form. In the present collections this specieshas occurred almost entirely at Albatross stations, the data for whichwill be foimd in table 2. In addition it has occurred at 3 fathoms,Viva Anchorage, Fiji, and at 12 fathoms off Levuka, Fiji. At someof the Albatross stations, as will be noted, the species is relativelyabundant. TROPICAL PACIFIC FORAMESTIFERA OF "ALBATROSS"Table 2. ? Bolivinita quadrilatera?material examined U.S.N.M.No. BULLETIN 161, UNITED STATES NATIONAL MUSEUM Publ. No. 1, pi. 33, figs. 15, 16; pi. 34, fig. 8, 1928.?Parr, Proc. Roy. Soc.Victoria, new ser., vol. 44, pt. 2, p. 223, pi. 21, fig. 23, 1932.?Cushman,Cushman Lab. Foram. Res. Special Publ. No. 4, pi. 21, fig. 11, 1933; No. 5,pi. 26, figs. 23a, b, 1933. ? Asano, Journ. Geol. Soc, Japan, vol. 46, No. 538,p. 607, pi. 16 (5), fig. 20, 1938.Test free, very much compressed, broad and triangular in front view,the apertural end usually broadly convex, in end view narrow, widestnear the middle, thence tapering toward the rather acute lateral mar-gins; chambers broad and low in the adult, in two alternating series,somewhat curved; sutures thickened, in the later portion usuallysomewhat sigmoid, median line with a slightly raised median suture;wall rather coarsely perforate; proloculum rounded or quadrangular,periphery often with spines at the outer angles or sometimes at thesides, independent of the individual chambers. Length, usually notmore than 0.50 mm.This is one of the typical Indo-Pacific species especially in the warmshallow waters of coral reefs. There are numerous records for theIndo-Pacific as follows: Shore sand, Melbourne (Parker and Jones);Mauritius, rare, from the intestine of Maretia planulata (Moebius) ; off East Moncoeur Island, Bass Strait, 38 fathoms; off Raine Island,Torres Strait, 155 fathoms; off Kandavu, Fiji, 255 fathoms; off Levuka,Fiji; Nares Harbor, Admiralty Islands, 17 fathoms; Honolulu coralreefs, 40 fathoms (H. B. Brady) ; Mauritius and East Australia (Egger)from the lagoon at Funafuti; shore sands of Victoria (Chapman);shallow water off Laysan Island (Rhumbler) ; off the HawaiianIslands, 305 fathoms (Bagg), 249 and 271 fathoms (Cushman); asingle specimen from the Kerimba Archipelago, 5-10 fathoms (Heron-Allen and Earland) ; Lord Howe Island (Heron-Allen and Earland) ; asingle specimen, Philippines; and Hawaii to Midway Island (Cush-Table S.?Bolivinella folia?material examined U.S.N.M.No. TROPICAL PACIFIC FORAMENIFERA OF "ALBATROSS" 5 man). In addition to the above localities the species has occurredat several Albatross stations, data for which are given in table 3.It has also been found to be common in shallow water at the followingstations about the Fiji Islands: Off Nairai, 12 and 24 fathoms; offLevuka, 12 fathoms; and Mokaujar Anchorage. There are also abun-dant specimens from Makemo Lagoon, Paumotu Islands. It seemsstrange that the species should be absent from the shoal-water collec-tions of some of the other regions that are represented by material,such as the Marshall Islands and Ladrone Islands,BOLIVINELLA FOLIA (Parker and Jones) var. ORNATA CoshmanPlate 2, Figures 5, 8Bolivinella folia (Parker and Jones) var. ornata Cushman, Contr. CushmanLab. Foram. Res., vol. 5, p. 32, pi. 5, figs. 3, 4, 1929.Test somewhat similar to the typical form but the apertural endmuch more convex, typically with a large stout spine at either side,the sutures broadly limbate and raised throughout into a fine beadedornamentation, the median line slightly raised but not markedly so.This variety was originally described from the shore sand of Hard-wicke Bay, Australia. There is a single specimen in our collectionsfrom 12 fathoms off Levuka, Fiji, and it has not occurred elsewhere.BOUVINELLA MARGARITACEA CoshmanPlate 2, Figure 7Bolivinella margariiacea Cushman, Contr. Cushman Lab. Foram. Res., vol. 5,p. 33, pi. 5, fig. 5, 1929.Test elongate, whole test very gradually broadening as chambersare added, sides usually irregularly indented and with irregularspinose projections of small size or wanting; chambers gently curved,the last one slightly sigmoid; sutures hmbate, slightly raised, theearlier ones only shghtly curved, later ones tending to become sig-moid and irregularly beaded, median line with a very slightly chan-neled ridge. Length, 0.40 mm.; breadth, 0.20 mm.This species was described from the Miocene of France, the faunaof which is related in many ways to the present Indo-Pacific fauna.It is, therefore, not surprising that a typical specimen, which is herefigured, appears in the material from Rutavu.Subfamily EOUVIGERININAEGenus NODOGENERINA Cushman, 1927Nodogenerina Cushman, Contr. Cushman Lab. Foram. Res., vol. 2, pt. 4, p. 79, 1927.Sagrina (part) of authors. 6 BULLETESr 161, UNITED STATES NATIONAL MUSEUMGenoholotype.?Nodogenerina bradyi Cushman.Test elongate, uniserial, straight; chambers increasing in size asadded, distinct, inflated; sutures depressed; wall calcareous, finelyperforate; aperture terminal, central, rounded, with a cylindricalneck and phialine lip. Cretaceous to Recent.NODOGENERINA (?) SPINATA CushmanPlate 2, Figure 11Nodogenerina spinata Cushman, B. P. Bishop Mus. Bull. 119, p. 123, pi. 14,fig. 14, 1934.Test elongate, very rapidly tapering from the somewhat roundedbase; most of the chambers of the same diameter or even slightlysmaller toward the apertm-al end, inflated; sutures distinct, depressed;wall calcareous, finely perforate, ornamented with numerous spinesprojecting backward and more abundant on the lower half of thechamber; aperture roimded, at the end of an elongate neck whichhas a slight lip.Holotype (Bishop Museum No. 1308) from the late Tertiary of Fiji.We have from Albatross station H3866, lat. 17?17'00" S., long.145?45'30'' W., in 804 fathoms, glob. oz. mang., a single typicalspecimen of this species, which is here figured. Its distribution must,therefore, be very greatly restricted, occurring in the late Tertiaryand still living off Fiji.NODOGENERINA (7) MILLETTI CushmanPlate 2, Figures 9, 10Sagrina nodosa Millett (not Parker and Jones), Journ. Roy. Micr. Soc, 1903,p. 271, pi. 5, figs. 12-15.Nodogenerina milletti Cushman, Contr. Cushman Lab. Foram. Res., vol. 9,p. 86, pi. 8, figs. 17, 18, 1933.Test elongate, tapering rapidly from the somewhat narrow base,greatest breadth in the adult specimens near the middle, and laterchambers somewhat reduced in size; chambers numerous, those ofthe early portion not inflated, later ones much inflated and excavatedat the base forming a distinct ridge about that portion; suturesdistinct, depressed especially in the later portion; wall calcareous,perforate, ornamented by very fine longitudinal costae which tendto break up into fine rows of papillae; aperture rounded, at the endof a slight neck but without a definite lip. Length, 0.70 mm.;breadth, 0.20 mm.The holotype is from 21 fathoms, Guam Anchorage, Ladrone Is-lands. The only other records for this species are those given byMillett from the Malay region. Tliis is not the same as Parkerand Jones' species, and the generic position of it is very much in TROPICAL PACIFIC FORAMtNIFERA OF "ALBATROSS" 7doubt, Millett figures some very strange forms with lobed chambersand the early portions possibly not entirely uniserial. Our specimenshave been too few to warrant the making of sections to determine thestructure of this early part, and this generic position must remaindoubtful until sufficient material can be obtained for sectioning.Family BULIMINIDAESubfamily TurrilininaeGenus BULIMINELLA Cushman, 1911BuUminella Cushman, U. S. Nat, Mus, Bull. 71, pt. 2, p. 88, 1911.Genoholotype.?Bulimina elegantissima d'Orbigny.Test an elongate close spiral, the spiral suture distinct; chambersthree or usually more in a whorl; wall calcareous, perforate; apertureelongate, loop-shaped, very slightly twisted. Cretaceous to Recent.BUUMINELLA MILLETTI CnshinanPlate 3, Figures 1-4BuUminella milletti Cushman, Contr. Cushman Lab. Foram. Res., vol. 9, p. 78,pi. 8, figs. 5, 6, 1933.Bulimina elegantissima var. Sidebottom, Mem. Proc. Manchester Lit. Philos.Soc, vol. 49, No. 5, p. 11, pi. 2, figs. 7-12; pi. 3, figs. 1, 2, 1905.Test small, tapering, initial end bluntly rounded, increasing indiameter toward the apertural end, consisting of two or three whorls;chambers distinct, four or more making up the last whorl, slightlyinflated; sutures distinct, flush with the surface or slightly depressed,especially the spiral suture, slightly limbate; wall smooth, very finelyperforate; aperture a semielliptical opening at the base of the aperturalface which is broadly rounded with slight ridges running into thedepressed area at the center. Length, 0.30 mm.; diameter, 0.15-0.20 mm.The types are from Mokaujar Anchorage, Fiji. The species occursat various localities in the Fiji Islands, Pago Pago Harbor, Samoa,Zanzibar, Montego Bay, Jamaica, the Dry Tortugas, and St. Johns,Antigua. It has been reported by Sidebottom from the Island ofDelos. The species also occurs in the shallow-water samples from12 fathoms, Levuka, Fiji; 12 and 24 fathoms, Nairai, Fiji; 18 fath-oms, Vavau Anchorage, Tonga Islands; off Niau and Niau Lagoon,Rongelap Atoll, Marshall Islands; 7 fathoms, Rotonga; Port Lotten,Kersail, Caroline Islands; and 21 fathoms, Guam Anchorage, LadroneIslands. It did not occur at any of the deeper Albatross stations.The species is larger, more tapering, and has fewer whorls thanBuUminella parallela Cushman and Parker, 8 BULLETIN 161, UNITED STATES NATIONAL MUSEUMBUUMINELLA MADAGASCARIENSIS (d'Orbigny) var. SPICATA Cushman and Parker, new namePlate 3, Figures 5, 6BuUmina elegantissima d'Orbigny var. apiculata Chapman (not Egger), Journ.Linn. Soc. London (Zoology), vol. 30, p. 31, pi. 4, fig. 77, 1907. ? Sidebottom,Journ. Roy. Micr. Soc, 1918, p. 23, pi. 3, fig. 11.Buliminella elegantissima (d'Orbigny) var. apiculata Cushman, Carnegie Inst.Washington Publ. 342, p. 25, 1924.Buliminella apiculata Cushman, Contr. Cushman Lab. Foram. Res., vol. 5, p. 44,pi. 7, figs, 6, 7, 1929. ? Cushman and Parker, Contr. Cushman Lab. Foram.Res., vol. 13, p. 39, pi. 4, figs. 10a, 6,1937.Variety differing from the typical in its somewhat larger size andin the presence of a stout, basal spine. Length, 0.40-0.72 mm.;diameter, 0.24-0.38 nmi.The types are from the Oligocene, Grices Creek, Balcombe Bay,Kackeraboite Creek, and Altoona Bay Coal Shaft, Victoria, Australia,The variety also occurs in the Oligocene, Byram marl, Byram, Miss.,and the Miocene and Recent of Australia, and in the Recent of theFiji and Samoan Islands. In our material it has occurred at oneAlbatross station, H3931, Anu Anuraro Atoll, % mile southeast, in405 fathoms at 42.5? F., co.s.pter.oz.mang.part., as a smgle specimen.A number of specimens were found in the material dredged at 40-50fathoms off Fiji; a few at Mokaujar Anchorage, Fiji; and single speci-mens from Makemo Lagoon and Pinaki Atoll in the Paumotu Islands.This variety has been given a new name owing to the priority ofEgger's Bulimina ovata d'Orbigny var. apiculata (1895).There is a great variation in size. The Recent specimens areespecially large and bear a close resemblance to Buliminella spinigeraCushman. They differ, however, in lacking the high polish of thelatter, in having more numerous, more distinct chambers, and a lessregular shape. Genus BULIMINOIDES Cushman, 1911Buliminoides Cushman, U. S. Nat. Mus. Bull. 71, pt. 2, p. 90, 1911.Genoholotype.?BuUmina williamsoniana H. B. Brady.Test subcylindrical, elongate, spirally twisted; chambers in a spiral,several chambers in a whorl, largely obscured by the heavy longi-tudinal costae; wall calcareous, perforate ; aperture terminal, central,circular, in a depression at the end of the test. Recent.BULIMINOIDES WILUAMSONIANA (H. B. Brady)Plate 3, Figures 7-9Bulimina williamsoniana H. B. Brady, Quart. Journ. Micr. Sci., vol. 21, p. 56,1881; Rep. Voy. Challenger, Zool., vol. 9, p. 408, pi. 51, figs. 16, 17, 1884.?Millett, Journ. Roy. Micr. Soc, 1900, p. 279, pi. 2, fig. 8. ? Bagg, Proc.U. S. Nat. Mus., vol. 34, p. 136, 1908. ? Heron-Allen and Earland,Trans. Zool. Soc. London, vol. 20, p. 641, 1915; British Antarctic (TerraNova) Exped., Zool., vol. 6, p. 130, 1922. TROPICAL PACIFIC FORAMDvflFERA OF "ALBATROSS" 9Buliminoides williamsoniana Cushman, Q. S. Nat. Mus. Bull. 71, pt. 2, p. 90,fig. 144 (in text), 1911; Carnegie Inst. Washington Publ. 311, p. 31, pi. 3,fig. 7, 1922; U. S. Nat. Mus. Bull. 104, pt. 3, p. 113, 1922; Carnegie Inst.Washington, Publ. 342, p. 25, pi. 7, figs. 3, 4, 1924; Cushman Lab. Foram.Res. Special Publ. No. 4, pi. 22, fig. 5, 1933; No. 5, pi. 27, figs. 6, 7, 1933.?Bermudez, Mem. Soc. Cubana Hist. Nat., vol. 9, p. 194, 1935.Test elongate, subcylindrical, broadly rounded at the initial endand increasing slightly in breadth toward the apertural end, circularor nearly so in transverse section; chambers and sutures indistinctowing to ornamentation of the surface, which consists of longitudinalcostae usually somewhat spirally twisted, running unbroken fromthe mitial to the apertural end and to the rim of the aperture; aperturerounded, circular or elliptical, m the middle of the sunken aperturalface. Length, up to 0.75 mm.; diameter, 0.15-0.20 mm.This is a widely distributed species in the Indo-Pacific with theexception of the records from the Tortugas region in the Atlantic,where it occurs rarely but in typical form. The aperture is oftenbroken owing probably to the fact that the young are developed inthe final chamber and the wall breaks down when they are released.Specimens have occurred at the following shallow-water stations:12 fathoms, Levuka, Fiji; Mokaujar Anchorage, Fiji; 12 fathoms,Nairai, Fiji; Port Lotten, Kersail, Caroline Islands; and Rangiroa.In the Albatross material it occurred only at station H3954, west endof Nomuka Island, N. 33?, 6 miles east, in 600 fathoms, at 39.2? F.,co.s.pum.pter.oz. Genus ROBERTINA d'Orbigny, 1846Robertina d'Orbigny, Foram. Foss. Bass. Tert. Vienne, p. 202, 1846.Genoholotype.?Robertina arctica d'Orbigny.Test an elongate close spiral, the sphal suture distinct; chambersseveral in each whorl, in microspheric young like Bulimmella, laterformmg a double series; wall calcareous, fmely perforate; apertureelongate, loop-shaped. Eocene to Recent.ROBERTINA SUBCYUNDRICA (H. B. Brady)Plate 3, Figure 14Bulimina subcylindrica H. B. Brady, Quart. Journ. Micr. Sci., vol. 21, p. 56,1881; Rep. Voy. Challenger, Zoology, vol. 9, p. 404, pi. 50, figs. 16a, b, 1884.?MiLLETT, Journ. Roy. Micr. Soc, 1900, p. 277, pi. 2, fig. 6. ? Sidebottom,Journ. Roy. Micr. Soc, 1918, p. 122, pL 3, fig. 7.Robertina subcylindrica Cushman and Parker, Contr. Cushman Lab. Foram.Res., voL 12, p. 95, pL 16, figs. 10a, b, 1936.Test subcylindrical, broadly rounded at both ends, about fourpairs of chambers in the last-lormed whorl, the chambers of the lowerseries much more elongate than those of the upper ones, somewhatinflated; sutures distinct, slightly depressed, somewhat limbate; wall 10 BULLETIN 161, UNITED STATES NATIONAL MUSEUM smooth, thin, transhicent; aperture comparatively short, narrow,nearly in the line of the elongate axis, supplementary aperture veryinconspicuous. Length, 0.50 mm.; diameter, 0.24 mm.Brady's types of this species were from Challenger station 120, offPernambuco, Brazil. It has been recorded from the Indo-Pacificand Australian regions. We have a typical specimen from 98 fathoms,off the Big King, New Zealand, and one specimen from off the Philip-pines. It is interesting, therefore, to find that in our Pacific materialthis species is comparatively rare, occurring almost entirely at thedeeper Albatross stations and found only once at Rutavu in theshallow-water samples and then only as a single specimen.Table 4. ? Rohertina subcylindrica?material examined U.S.N.M.No. TROPICAL PACIFIC FORAMUSIIFERA OF "ALBATROSS" 11Test small, fusiform, often somewhat curved, broadest near themiddle, rounded at the apertural end, pointed at the initial end;chambers indistinct; sutures indistinct, occasionally showing slightlybetween the costae, slightly depressed; wall of last chamber smooth,rather coarsely perforate, remainder of test ornamented by ten oreleven regular, platelike costae, continuous throughout; aperturesmall, loop-shaped, at the apex of the test. Length (of figuredspecimen), 0.40 mm.; diameter, 0.20 mm.The types are from the Recent, Ki Islands, in 428 fathoms. Thespecies is found in both the north and south Pacific. In our materialit occurred at Albatross station H3900, midway between Hikueru andMarokau, in 1,620 fathoms.BULIMINA ELONGATA d'Orbigny var. SUBULATA Cushman and ParkerPlate 3, Figure 13Bulimina elongata d'Orbigny var. siibulata Cushman and Parker, Contr.Cushman Lab. Foram. Res., vol. 13, p. 51, pi. 7, figs. 6, 7, 1937.Bulimina aculcaia Reuss (not d'Orbigny), Denkschr. Akad. Wiss. Wien, vol. 1,p. 374, pi. 47, fig. 13, 1850. ? Egger, Jahresb. Naturh. Ver. Passau, vol. 16,p. 17, pi. 3, figs. 8, 10, 13, 14, 1895.?Macfadyen, Egypt Geo!. Survey, 1930,p. 55, pi. 1, fig. 19, 1931.?HoFKER (part), Pubbl. Staz. Zool. Napoli, vol. 12,pt. 1, p. 121, figs. 33-35, 1932.Bulimina spinosa Seguenza, Accad. Gioenia Sci. Nat. Atti, ser. 2, vol. 18, p. 23,pi. 1, figs. 8, 8a, 1862. ? Cushman and Parker, Contr. Cushman Lab. Foram.Res., vol. 14, p. 62, 1938.Bulimina ovata Paeker and Jones (not d'Orbigny), Philos. Trans. Roy. Soc,vol. 155, p. 374, pi. 17, figs. 67 a, b, 1865.Bulimina elongata H. B. Brady (not d'Orbigny), Rep. Voy. Challenger, Zoology,vol. 9, p. 401, pi. 51, figs. 1, 2, 1884.Bulimina elegans Egger (not d'Orbigny), Abh. kon. bay. Akad. Wiss., CI. ii,vol. 18, p. 284, pl. 8, figs. 66, 67, 1893; Jahresb. Naturh. Ver. Passau, vol. 16,p. 16, pl. 3, fig. 9, 1895.Variety difFermg from the typical in having well-developed spinesat the base of the test, varying in length and number.This variety is represented in the Albatross material only fromH3977, southeast point of Elmore Atoll, N. 30?, 9 miles west, in 1,283fathoms, at 35.9? F., crs. glob. oz. Its absence from the shallow-waterstations is not to be wondered at, as the records of living specimens ofthis variety are mostly in either cool or deep waters. It is very rareat this station. BULIMINA FIJIENSIS CushmanPlate 3, Figures 10, 11Bulimina fijiensis Cushman, Contr. Cushman Lab. Foram. Res., vol. 9, p. 79,pl. 8, figs. 7o-c, 1933. Cushman and Parker, Contr. Cushman Lab. Foram.Res., voh 16, p. 17, pl. 3, figs. 15, 16, 1940.Test small, stout, slightly longer than broad, rounded; chambersdistinct, inflated, somewhat globular, comparatively few, increasingrapidly in size as added; sutures distinct, depressed; wall coarsely408333?41 2 12 BULLETIN 161, UNITED STATES NATIONAL MUSEUMperforate except about the aperture where it is apparently withoutperforations; aperture loop-shaped, placed well above the junction ofthe second and third chambers. Length, 0.25 mm.; diameter,0.15 mm.This small species seems to be very distinct but limited in its dis-tribution, as it has occurred only at the type station, 12 fathoms,Nairai, Fiji, and at Levuka, Fiji, also in 12 fathoms.Subfamily VirgulininaeGenus VIRGULINA d'Orbigny, 1826Virgulina d'Orbigny, Ann. Sci. Nat., vol. 7, p. 267, 1826.Synonyms: Strophoconus Ehrenberg, 1843; Grammobotrys Ehrenberg, 1845.Genoholotype.? Virgulina squammosa d'Orbigny.Test elongate, more or less compressed, fusiform; early chambersspiral about the elongate axis, especially in the microspheric form,triserial, later becoming irregularly biserial, whole test usually twisted;wall calcareous, finely perforate; aperture elongate, loop-shaped, withan apertural tooth or plate and internal spiral tube. Lower Creta-ceous to Recent. VIRGUUNA SCHREIBERSIANA CzjzekPlate 4, Figure 1Virgulina schreibersiana Czjzek, Haidinger's Nat. Abh., vol. 2, p. 11, pi. 13, figs.18-21, 1848.?Reuss, Sitz. Akad. Wiss. Wien, vol. 55, pt. 1, p. 96, pi. 4,figs. 4, 5, 1867.?Karrer, Sitz. Akad. Wiss. Wien, vol. 58, pt. 1, p. 177,1868. ? Terrigi, Atti Accad. Pont. Nuovi Lincei, vol. 33, p. 74, pi. 2, figs.38, 39, 1880; vol. 35, p. 190, 1883.? Mariani, Atti Soc. Ital. Sci. Nat.,vol. 31, p. 100, 1888.?Terrigi, Mem. Com. Geol. Ital., vol. 4, pt. 1, p. 74,1891.?FoRNASiNi, Rend. Accad. Sci. Bologna, vol. 2, p. 18, pi. 2, fig. 9,1897-1898 (1898); Mem. Accad. Sci. Istit. Bologna, ser. 5, vol. 8, p. 21(111), fig. 24, 1900; vol. 9, p. 11, pi. 0, figs. 28, 44, 1901.?Silvestri, AttiAccad. Pont. Nuovi Lincei, vol. 57, p. 22, text figs, la-c (not2a-d= V. squam- ?mosa d'Orbigny), 1903. ? Sidebottom, Mem. Proc. Manchester Lit.Philos. Soc, vol. 49, No. 5, p. 13, pi. 3, fig. 4, 1905; vol. 54, pt. 3, p. 12, 1910.?TouLA, Jahrb. kais.-kon. Geol. Reichs., vol. 64, pp. 638, 645, 1914 (1915);Verh. Geol. Reichs. Jahrb., 1914, p. 205. ? Martinotti, Boll. Ufficio Geol. Ital.,vol. 50, p. 3 (list), 1926.?Macfadyen, Geol. Survey Egypt, p. 56, pi. 1,figs. 24o, b, 1930 (1931).?HoFKER, Pubbl. Staz. Zoof. Napoli, vol. 12, fasc.1, p. 117, fig. 3, 1932.?CusHMAN, Contr. Cushman Lab. Foram. Res., vol.8, p. 17, pi. 3, figs. 5a-c, 1932. ? Earland, Discovery Reports, vol. 13, p.43, 1936. ? Cushman, Cushman Lab. Foram. Res. Special Publ. No. 9, p. 13,pi. 2, figs. 11-20, 1937.Virgulina squamosa Egger (not d'Orbigny), Jahresb. Naturh. Ver. Passau, vol.16, p. 18, pi. 1, figs. 21a-c, 1895.Test elongate, slender, only slightly compressed, periphery broadlyrounded, initial portion strongly twisted , later biserial chambers oftensomewhat irregular in side view, those of one side being higher thanthe opposite series; chambers distinct, slightly inflated, high, par- TROPICAL PACIFIC FORAMENIFERA OF "ALBATROSS" 13ticularly in the adult biserial portion, which consists usually of onlyabout four chambers; sutures distinct, slightly depressed; wall smooth,Imely perforate; aperture elongate in the adult, often failing to reachthe base of the apertural face, but continuing on to the terminal endof the test. Length, up to 1.00 mm.; breadth, 0.20-0.25 mm.; thick-ness, 0.18-0.20 mm.Specimens that may be referred to this species, which is commonin the Mediterranean region, occurred abundantly at only one of theshallow-water stations. Port Lotten, Kersail, Caroline Islands. Speci-mens occurred also at Albatross station H3838, lat. 16?57'00" S., long.148?58'00" W., in 2,224 fathoms, vol. m. glob.VIRGUUNA COMPLANATA EggerPlate 4, Figures 2-5Virgvlina schreibersiana Czjzek var. complanata Egger, Abh. kon. bay. Akad.Wiss. Muncheu, CI. ii, vol. 18, p. 292, pi. 8, figs. 91, 92. 1893.?Cushman,Contr. Cushman Lab. Foram. Res., vol. 8, p. 11, pi. 2, figs. 6a, h, 1932. ? Earland, Discovery Reports, vol. 10, p. 131, pi. 5, figs. 54, 55, 1934.VirguUna subsquammosa Cushman (not Egger), Carnegie Inst. WashingtonPubl. 342, p. 26, 1924.VirguUna complanata Cushman, Cushman Lab. Foram. Res. Special Publ. No. 9,p. 26, pi. 4, figs. 13-17, 1937.Test elongate, slender, tapering throughout, greatest breadthformed by the last pair of chambers, strongly compressed, earliestportion somewhat twisted, later distinctly biserial; chambers in-creasing in height and length as added, later ones somewhat inflated;sutures distinct, depressed, oblique, slightly curved; wall smooth,finely perforate; aperture elongate, comparatively broad, slightlycurved, extending to the base of the inner margin of the last-formedchamber. Length, 1.50 mm.; breadth, 0.40 mm.; thickness, 0.25mm.Our only specimens of this species are from Albatross stations, datafor which are given in table 5. The types described by Egger arefrom off West Australia in 90-359 meters.Table 5.? VirguUna complanaia?material examined U.S.N.M.No. 14 BULLETIN 161, UNITED STATES NATIONAL MUSEUMVIRGUUNA PAUCILOCULATA H. B. BradyPlate 5, Figures 1-3Virgulina pauciloculata H. B. Brady, Rep. Voj'. Challenger, Zoology, vol. 9,p. 414, 1)1. 52, figs. 4, 5, 1884. ? Egger, Abh. kon. bay. Akad. Wiss. Miinchen,Cl. II, vol. 18, p. 292, pi. 8, figs. 86-88, 94, 1893.?Pearcey, Trans. Roy. Soc.Edinburgh, vol. 49, p. 1015, 1914.?Cushman, U. S. Nat. Mus. Bull. 100, vol.4, p. 168, 1921; Bull. 104, pt. 3, p. 121, 1922.?Heron-Allen and Earland,British Antarctic Exped., Zoology, vol. 6, p. 132, 1922. ? Cushman, Contr.Cushman Lab. Foram. Res., vol. 8, p. 10, pi. 2, figs. 3a-c, 1932; SpecialPubl. No. 9, p. 25, pi. 4, figs. 1-6, 1937.Test typically about 2}^ times as long as broad, only slightly com-pressed, the early, spirally twisted chambers irregular, elongate,but in adults with two to four biserial chambers somewhat morecompressed and inflated; sutures distinct, slightly depressed, stronglyoblique; wall smooth, finely perforate; aperture narrowly elliptical,with the opening usually somewhat narrowed at the base of thechamber. Length, up to 1.00 mm.; breadth, 0.30 mm.; thickness,0.18 mm.The original specimens described by Brady were from the SouthPacific region. In our material it has occurred very rarely in the ^/6aiross collections, the only record being Albatross station H3840, lat.17?21'00" S., long. 149?15'00" W., m 1,585 fathoms, vol. m. Ithas, however, occurred abundantly in the shallow water at somestations, particularly off Fiji, at Viva Anchorage, in 3 fathoms; offNairai, 12 and 24 fathoms; off Levuka, 12 fathoms; and off Niau.Specimens are common also in 7 fathoms off Rotonga, and are rareat Vivau Anchorage, Tonga Islands, in 18 fathoms.VIRGUUNA FIJIENSIS CushmanPlate 4, Figure 6Virgulina fijiensis Cushman, Cushman Lab. Foram. Res. Special Publ. No. 6,p. 49, pi. 7, figs. 9a-c, 1936; No. 9, p. 31, pi. 5, fig. 5, 1937.Test very elongate, slender, six or seven times as long as broad,slightly compressed, somewhat twisted throughout, the later portionbecoming more definitely biserial, periphery broadly rounded, slightlydepressed, oblique; wall smooth, finely perforate; aperture narrowlyelongate, slightly curved, continumg to the base of the inner marginof the last-formed chamber. Length, 1.60 mm.; breadth, 0.25 mm.;thickness, 0.18-0.20 mm.The types are from off Nairai, Fiji, in 12 fathoms.This is a very elongate, slender species, which keeps the twistedspiral character throughout most of its development. TROPICAL PACIFIC FORAMLNIFERA OF "ALBATROSS" 15Genus BOLIVINA d'Orbigny, 1839Bnlivina d'Orbigny, Voy. Amdr. Mdrid., vol. 5, pt. 5, p. 01, 1839.Synonyms: Sagrina d'Orbigny, 1839; Grammostomum Ehrenbcrg, 1840; ProroporusEhrenberg, 1844; ClidoHomuyn Ehrenberg, 1845; Brizalina Costa, 1856.Genotype.?By designation, Bolivina plicata d'Orbigny.Test elongate, usually compressed, tapering, initial end and oftenwhole test twisted ; chambers typically biserial ; wall calcareous, finelyor coarsely perforate; aperture elongate, usually oblique, somewhatloop-shaded, often with a platelike tooth connecting with an internaltube. Cretaceous to Recent.BOLIVINA VADESCENS CushmanPlate 5, Figure 4Bolivina vadescens Cushman, Contr. Cushman Lab. Foram. Res., vol. 9, p. 81,pi. 8, figs, llo, b, 1933; Cushman Lab. Foram. Res. Special Publ. No. 9,p. 126, pi. 16, fig. 11, 1937.Test elongate, in the adult about 2}^ times as long as broad,periphery distinctly rounded, the early stages rapidly increasing inwidth as chambers are added, after which the sides become nearlyparallel; chambers vely distinct but not strongly inflated, of ratheruniform shape thi'oughout but increasing very slightly in size asadded; sutures very distinct, limbate, peculiarly sigmoid, the innerend especially in the adult having almost a distinct angle after whichthe sutures pass to the border in a nearly straight Ime which is stronglyoblique to the horizontal; wall smooth, but very distinctly perforate ; aperture at the base of the last-formed chamber, consisting of a broadloop-shaped opening. Length, 0.65 mm.; breadth, 0.30 mm.; thick-ness, 0.15 mm.This species in its general size and shape is very similar to Bolivinaoceanica, but the chambers are very different in their shape, and thesutures particularly with their sigmoid curvature and strongly limbatecharacter are very distinct. The species is fairly common in the shoalwater of various areas. It occurs about Fiji off Nairai in 12 and 24fathoms; off Levuka, 12 fathoms; Viva Anchorage, 3 fathoms; MakemoLagoon, Paumotu Islands; Rotonga, 7 fathoms; and at Guam Anchor-age, Ladrone Islands, 21 fathoms. The only Albatross station fromwhich I have had the species is H3890, lat. 16?25'00" S., long.143?33'00" W., in 1,108 fathoms, 36.1? F., glob. oz. mang.BOLIVINA HANTKENIANA H. B. BradyPlate 5, Figures 5-8Bolivina hantkeniana H. B. Bradt, Quart. Journ. Micr. Sci., vol. 21, p. 58, 1881;Rep. Voy. Challenger, Zoology, vol. 9, p. 424. pi. 53, figs. 16-18, 1884.?Egger,Abh. kon. bay. Akad. Wiss. Munchen, Cl. n, vol. 18, p. 296, pi. 8, figs. 40-42,1893.?MiLLETT, Journ. Roy. Micr. Soc, 1900, p. 546, pi. 4, fig. 9. ? Cush-man, U. S. Nat. Mus. Bull. 71, pt. 2, p. 42, fig. 68 (in text), 1911.?Side- 16 BULLETIN 161, UNITED STATES NATIONAL MUSEUMBOTTOM, Joiirn. Roy. Micr. Soc, 1918, p. 127. ? Cushman, U. S. Nat. Mus.Bull. 100, vo) 4, p. 132, pi. 27, fig. 2, 1921; Carnegie Inst. Washington,Publ. 342, p. 1l pi. 6, figs. 1, 2, 1924; Cushman Lab. Foram. Res. SpecialPubl. No. 9, p. 1 7, pi. 16, figs. 18-20, 1937.Test broad, muc^ compressed, usually completely surroundedexcept at the aperture by a broad winglike flange, either entire orvariously lobed; chambers inflated somewhat; sutures very distinct,slightly depressed; wall calcareous, with a few short, longitudinalcostae, usually confined to the limits of the chamber on which theyoriginate; aperture narrow, oval, with a single toothlike projectionin the orifice. Length, up to nearly 1.00 mm.This is a species originally described from the Indo-Pacific andconfined to that area so far as authentic material has been examined.There are records for it from various Tertiary deposits, but the figuresaccompanying the records do not seem to belong to this very definitespecies. In our Recent collections the species has occurred almostentirely at Albatross stations, as will be noted in table 6. There aretwo distinct forms, one very broad and with distinct transparent keelsabout the periphery especially of the later chamber, the other formsomewhat narrower and with the keels eithfer wanting or greatlyreduced. In both forms the characteristic costae are present butvariable in number and strength. The only shallow-water stationfrom which we had material is Viva Anchorage, Fiji, in 3 fathoms.Table 6. ? Bolivina hantkeniana?material examined U.S.N.M.No. TROPICAL PACIFIC FORAMINIFERA OF "ALBATROSS" 17 as high, the middle area of each expanded into coarse, spinose pro-jections; sutures distinct, strongly depressed, straight, oblique, form-ing an angle of 25?-30? with the horizontal in the adidt, more strongly-oblique in the early stages; wall distinctly perforate; aperture elongate,with a slightly expanded opening at the base of the inner margin ofthe chamber. Length, 0.60 mm.; breadth, 0.35 mm.; thickness0.20 mm.The types are from 40-50 fathoms off Fiji.This resembles B. simpsoni Heron-Allen and Earland but is muchmore coarsely spinose. BOUVINA ROBUSTA H. B. BradyPlate 6, Figure 2Bolivina robusta H. B. Brady, Quart. Journ. Micr. Sci., vol. 21, p. 27, 1881; Rep.Voy. Challenger, Zoology, vol. 9, p. 421, pi. 53, figs. 7-9, 1884.?Egger,Abh. kon. bay. Akad. Wiss. Munchen, CI. ii, vol. 18, p. 294, pi. 8, figs. 31,32, 1893.?Chapman, Proc. Zool. Soc. London, 1895, p. 24.?Millett,Journ. Roy. Micr. Soc, 1900, p. 543.? Chapman, Journ. Linn. Soc. Zool.,vol. 28, p. 400 (list), 1902; Trans. New Zealand Inst., vol. 38, p. 89, 1905(1906).?Bagg, Proc. U. S. Nat. Mus., vol. 34, p. 139, 1908.?Chapman,Rep. Foram. Subantarctic Islands of New Zealand, p. 331, 1909; Journ.Linn. Soc. Zool., vol. 30, p. 404, 1910.?Cushman, U. S. Nat. Mus. Bull. 71,pt. 2, p. 36, figs. 59, 60, 1911. ? Chapman, Biol. Res. Endeavour, vol. 3, pt. 1,p. 20, 1915. ? Heron-Allen and PJarland, Trans. Zool. Soc. London, vol. 20,p. 646, 1915.?SiDEBOTTOM, Journ. Roy. Micr. Soc, 1918, p. 126.?Cush-man, U. S. Nat. Mus. Bull. 100, vol. 4, p. 129, 1921.?Heron-Allen andEarland, British Antarctic Exped., Zool., vol. 6, p. 136, 1922; Journ. Linn.Soc. Zool., vol. 35, p. 621, 1924. ? Yabe and Hanzawa, Jap. Journ. Geol.Pal., vol. 4, p. 50, 1925 (1926).?H.\da, Trans. Sapporo Nat. Hist. Soc, voL11, pt. 1, p. 11, 1929; Sci. Rep. Tohoku Imp. Univ., ser. 4, Biol., vol. 6, p. 131,fig. 88, 1931. ? Heron-Allen and Earland, Discovery Reports, vol. 4, p. 345,1932. ? Earland, Dzscot^erT/ Reports, vol. 7, p. 102, 1933. ? Cushman, CushmanLab. Foram. Res. Special Publ. No. 9, p. 131, pi. 17, figs. 1-4, 1937.Bolivina acaulis Egger, Abh. kon. bay. Akad. Wiss. Munchen, CI. ii, vol. 18,p. 295, pi. 8, figs. 28-30, 1893.Test about twice as long as broad, compressed, greatest breadthformed by the last pair of chambers, periphery subacute, initial endoften with a single large acicular spine ; chambers distinct, very slightlyif at all inflated, much broader than high throughout, increasinggradually in size as added ; sutures distinct, strongly limbate, obliquelycurved, at the periphery forming an angle of about 45? with thehorizontal, the later ones usually crenulate, owing to the basal marginof the chamber having a series of alternating lobes and reentrants;wall coarsely perforate, somewhat sculptured by the crenulatedmargins, and occasionally showing traces of rudimentary costae;aperture a small, oval opening, often with a slight lip. Length, up to0.60 mm.; breadth, 0.25-0.30 mm.; thickness, 0.15-0.18 mm. 18 BULLETIN 161, UNITED STATES NATIONAL MUSEUMThis is a widely distributed species in comparatively deep waterrecorded at many stations in the Pacific but also apparently widelydistributed in other parts of the world both Recent and fossil. It hasnot occurred abundantly at any of the stations, all of which are fromthe deeper-water Albatross collections. None of the highly developedforms with the long spine was present.Table 7. ? Bolivina robusta?material examined U.S.N.M.No. TROPICAL PACIFIC FORAMINIFERA OF "ALBATROSS" 19 oblique, forming an angle of about 45? with the horizontal; walldistinctly perforate, ornamented by longitudinal costae, sharp andhigh, few in number, usually one prominent one toward the peripheryat each side, with supplementary ones at the periphery; aperturebroadly oval, sometimes with a slight lip. Length, 0. 50-0. 75 mm.;breadth, 0.25-0.35 mm.; thicloiess, 0.20-0.30 mm.This species was originally described by Brady from off the Philip-pines, and there are very few records for the species, all of wliich arefound in the same general region. It has occurred rather abundantlyat only one station in our material, that from 3 fathoms, Viva Anchor-age, Fiji. BOLIVINA SUBANGULARIS H. B. Brady var. LINEATA (Cushnian)Plate 6, Figures 5, 6Bolivinita suhangularis H. B. Brady var. lineaia Cushman, Contr. Cushman Lab.Foram. Res., vol. 9, p. 77, pi. 8, figs. 1, 2, 1933.Variety differing from the typical in the wall, which is ornamentedwith supplementary small costae in addition to the typical large ones.The types of this variety are from Levuka, Fiji, in 12 fathoms. Italso occurs in 3 fathoms, off Viva Anchorage, Fiji.BOUVINA RHOMBOIDALIS (Mlllett)Plate 6, Figures 7, 8Textularia rhomboidalis Millett, Journ. Roy. Micr. Soc, 1899, p. 559, pi. 7,fig. 4. ? Sidebottom, Mem. Proc. Manchester Lit. Philos. Soc, vol. 49, No. 5,p. 8, pi. 2, fig. 2, 1905.Bolivina rhomboidalis Cushman, Carnegie Inst. Washington Publ. 311, p. 28,1922; U. S. Nat. Mus. Bull. 104, pt. 2, p. 44, 1922.?Cole, Florida State Geol.Survey Bull. 6, p. 42, 1931.- ? Heron-Allen and Earland, Discovery Reports,vol. 4, p. 356, 1932. ? Bermudez, Mem. Soc. Cubana Hist. Nat., vol. 9, p.194, 1935. ? Cushman, Cushman Lab. Foram. Res. Special Publ. No. 9,p. 138, pi. 18, fig. 7, 1937.Test generally triangular in front view, slightly longer than broad,increasing in breadth from the rather bluntly pointed initial end to thebroad, somewhat obliquely truncate, apertural end, periphery oblique-ly truncate; chambers numerous, distinct, very slightly inflated,increasing rather uniformly in size as added; sutures distmct, some-what oblique; wall rather coarsely perforate, otherwdse smooth;aperture oval, somewhat elongate. Length, 0.40 mm.This species was originally described from the Malay Archipelagoby Millett. It has since been recorded from wddely separated regions.Our specimens are from Rotonga and from Rangiroa. 20 BULLETIN 161, UNITED STATES NATIONAL IVIUSEUMBOUVINA TORTUOSA H. B. BradyPlate 7, Figure 1Bolivina tortuosa H. B. Brady, Quart. Joiirn. Micr. Soc, vol. 21, p. 57, 1881; Rep.Voy. Challenger, Zoology, vol. 9, p. 420, pi. 52, figs. 31, 32 (not 33. 34), 1884.?Egger, Abh. kon. bay. Akad. Wiss. Munchen, CI. n, vol. 18, p. 298, pi. 8,figs. 43, 44 (part), 1893. ? Millett, Journ. Roy. Micr. Soc, 1900, p. 543. ? Chapman, Journ. Linn. Soc. Zool., vol. 28, p. 187, 1900; p. 382, 1902.?Side-bottom, Journ. Roy. Micr. Soc, 1918, p. 127. ? Cushman, Carnegie Inst.Washington Publ. 342, p. 18, pi. 5, figs. 4, 5, 1924. ? Heron-Allen and Ear-land, Journ. Roy. Micr. Soc, 1924, p. 145; Journ. Linn. Soc. Zool., vol. 35,p. 621, 1924. ? Yabe and Hanzawa, Jap. Journ. Geol. Pal., vol. 4, p. 50, 1925(1926).?Hanzawa, Jap. Journ. Geol. Pal., vol. 4, p. 40 (table), 1925 (1926).?Macfadten, Geol. Survey Egypt, p. 57, 1930 (1931). ? Cushman andParker, Proc U. S. Nat. Mus., vol. 80, art. 3, p. 16, pi. 3, figs. 22a, b, 1931.?Bermudez, Mem. Soc. Cubana Hist. Nat., vol. 9, p. 195, 1935.Test short and broad, slightly longer than broad, much compressed,periphery acute but not carinate, early portion with the axis muchtwisted; chambers few, distinct, comparatively high, periphery notlobulate; sutures distinct, not depressed; wall with numerous coarsepunctae; aperture tending to become terminal, elongate, elliptical.Length, up to 0.35 mm.; breadth, up to 0.35 mm.This species is one of the characteristic ones of the Indo-Pacificregion, although there are records for it in the Atlantic. Some of thecolder-water records for this species are evidently not the same, as thename has been applied to various species of Bolivina that have thesame twisted test. B. tortuosa as developed in the Indo-Pacific regionand found rarely in the Tropics elsewhere is a very distinctive andeasily distinguished form. In our Pacific collections it has occurred atnumerous Albatross stations, as will be seen from table 8, and often inconsiderable numbers. It is, however, most abundant in the shallow-water collections, occurring about the Fiji Islands in 40-50 fathoms;off Nairai, 12 fathoms; off Levuka, 12 fathoms; Viva Anchorage, 3fathoms; and Mokaujar Anchorage. In other collections it hasoccurredat Vavau Anchorage, Tonga Islands, 18 fathoms: Rangiroa; MakemoLagoon, Paumotu Islands; inside the lagoon at Pinaki Atoll, PaumotuIslands; Rongelap Atoll, Marshall Islands; and Port Lotten, Kersail,Caroline Islands. BOLIVINA COMPACTA SidebottomPlate 7, Figures 2, 3Bolivina robusta H. B. Brady var. compacta Sidebottom, Mem. Proc. Man-chester Lit. Philos. Soc, vol. 49, No. 5, p. 15, pi. 3, fig. 7, 1905.Bolivina compacta Cushman, U. S. Nat. Mus. Bull. 71, pt. 2, p. 36, fig. 58, 1911;Bull. 100, vol. 4, p. 137, pi. 26, fig. 7, 1921; Carnegie Inst. Washington Publ.311, p. 26, pi. 1, fig. 10, 1922; U. S. Nat. Mus. Bull. 104, pt. 3, p. 45, 1922;Carnegie Inst. Washington Publ. 342, p. 18, pi. 5, fig. 1, 1924.?Heron- TROPICAL PACIFIC FORAMESTIFERA OF "ALBATROSS"Table 8.? Bolivina tortuosa?material examined 21 22 BULLETIN 161, UNITED STATES NATIONAL MUSEUMAllen and Earland, Discovery Reports, vol. 4, p. 354, 1932. ? Cushman,Cushman Lab. Foram. Res. Special Publ. No. 9, p. 135, pi. 17, figs. 22-24,1937.Test elongate, tapering, 2)2 to 3 times as long as broad, periphery-rounded, initial end bluntly pointed, apertural end obliquely rounded;chambers numerous, somewhat mflated; sutures very slightly de-pressed, not very distinct; wall ornamented by a series of largecoarse punctae somewhat irregularly arranged, those of the last-formed chambers finer and more numerous; aperture elongate, extend-ing from the base of the inner margin of the last-formed chamber tothe highest point of the chamber. Length, up to 0.75 mm,; breadth,0.25-0.30 mm.; thickness, 0.12-0.15 mm.This is a widely distributed species in the Pacific material and is astriking one in its characters. The early portion of the test has apearly luster and is very distinctive, the ornamentation consisting ofcoarse depressions with the portions of the wall between often raisedinto low platelike areas. Most of the records are from the deeperAlbatross stations where it is often common, but it has also occurredsomewhat less abundantly at the following shallow-water stations:Off Fiji, 40-50 fathoms; off Levuka, Fiji, 12 fathoms; off Nairai, Fiji,12 and 24 fathoms; Viva Anchorage, 3 fathoms; and MokaujarAnchorage, Fiji. It was abundant off Niau, and less abundant fromPinaki Atoll inside the lagoon. There are specimens also fromRangiroa; Vavau Anchorage, Tonga Islands, 18 fathoms; GuamAnchorage, Ladrone Islands, 21 fathoms; Rongelap Atoll, MarshallIslands; and from Makemo Lagoon, Paumotu Islands.Table 9. ? Bolivina compacta?material examined U.S.N.M.No. TROPICAL PACIFIC FORAMINIFERA OF "ALBATROSS' 23Table 9. ? Bolivina compada?material examined?Continued 24 BULLETIN 161, UNITED STATES NATIONAL MUSEUMTable 9. ? Bolivina co7npacta?material examined?Continued U.S.N.M.No. TROPICAL PACIFIC rORAMLNIFERA OF "ALBATROSS" 25This small species has occurred only in the Albatross material fromthe deeper-water stations, no specimens at all having been found inany of the shallow-water stations around any of the islands. Itmay be distinguished by its straight sutures, nearly parallel sides,and the increase in obliquity of the sutures from the early stages tothe adult. Table 10. ? Bolivina oceanica?material examined U.S.N.M.No. 26 BULLETIN 161, UNITED STATES NATIONAL MUSEUMfor the species is from foraminiferal sand dredged 16 miles east ofWollongong off Australia, at a depth of 100 fathoms. In our presentcollections the species has occurred as single specimens at two Alba-tross stations as follows: H3989, South Pass, Likieb, ji mile north, 468fathoms, 42.6? F., crs. co. s. (U.S.N.M. No. 26731); and H3983,entrance to South Pass, Rongelap, ji mile north, 400 fathoms, 43.4?F., CO. s. (U.S.N.M. No. 26732).BOLIVINA SEMINUDA CushmanPlate 7, Figure 6Bolivina seminuda Cushman, U. S. Nat. Mus. Bull. 71, pt. 2, p. 34, fig. 55 (intext), 1911; Contr. Cushman Lab. Foram. Res., vol. 2, pt. 2, p. 43, 1926;Bull. Scripps Inst. Oceanogr. Tech. Ser., vol. 1, No. 10, p. 157, pi. 3, fig. 6,1927.?Hada, Trans. Sapporo Nat. Hist. Soc, vol. 11, pt. 1, p. 11, 1929.?Cushman and Moyer, Contr. Cushman Lab. Foram. Res., vol. 6, p. 57,1930. ? Hada, Sci. Rep. Tohoku Imp. Univ., ser. 4, Biol., vol. 6, p. 132,fig. 89 (in text), 1931. ? Cushman, Cushman Lab. Foram. Res. Special Publ.No. 9, p. 142, pi. 18, figs. 13-15, 1937.Test elongate, subcylindrical, very slightly compressed, initial endrounded; chambers numerous, high, very slightly inflated; suturesdistinct but not depressed; wall hyaline, the lower half of each chamberwith rather coarse foramina, the upper half clear; aperture elongate,loop-shaped; transparent except the lower half of each chamber,which is whitish. Length, up to 1.00 mm.The original references for this are from the cold waters of theNorth Pacific as are also the other records. It occurs also in the lateTertiary of California. Specimens apparently identical with thisspecies occur in our present material only at tlu-ee Albatross stationsin the eastern part of the area.Table 11. ? Bolivina seminuda?material examined U.S.N.M.No. TROPICAL PACIFIC FORAMINIFERA OF "ALBATROSS" 27BOLIVINA SPINESCENS CushmanPlate 7, Figure 7Bolivina textilarioides H. B. Brady (part), Rep. Voy. Challenger, Zoology, vol. 9,p. 419, pi. 62, figs. 24, 25, 1884 (not Bolivina textilarioides Rcuss, 1862). ? MiLLETT, Journ. Roy. Micr. Soc, p. 542, pi. 4, fig. 5, 1900. ? Bagg, Proc.U. S. Nat. Mus., vol. 34, p. 137, 1908.Bolivina spinescens Cushman, U. S. Nat. Mus. B,ill. 71, pt. 2, p. 46, 1911.Heron-Allen and Earland, Discovery Reports, vol. 4, p. 354, pi. 9, figs.7, 8, 1932. ? Earland, Discovery Reports, vol. 10, p. 132, pi. 6, figs. 8-10,1934. ? Cushman, Cushman Lab. Foram. Res. Special Publ. No. 9, p. 142,pi. 18, figs. 17-19, 1937.Table 12. ? Bolivina spinescens?material examined U.S.N.M.No. 28 BULLETIN 161, UNITED STATES NATIONAL MUSEUMTest elongate, subcylindrical, the apex bluntly pointed; chambersnumerous, inflated, the sutures fairly deep, the surface smooth exceptthe portion at and just above the sutures, which is minutely spinoseor granular; aperture large, loop-shaped, with a slightly raised border.Length, 0.50-0.75 mm.; breadth, 0.15 mm.; thickness, 0.12 mm.This species occurs at numerous Albatross stations, data for whichare given in table 12. BOUVINA CAPITATA CushmanPlate 8, Figukes 1-3Bolivina capitata Cushman, Contr. Cushman Lab. Foram. Res., vol. 9, p. 80,pi. 8, figs. 12a, b, 1933; Cushman Lab. Foram. Res. Special Publ. No. 9,p. 146, pi. 19, fig. 29, 1937.Test elongate, about 3 times as long as broad, tapering graduallyfrom the subacute initial end to the somewhat swollen apertural end,periphery rounded and somewhat lobulated; chambers numerous,distinctly inflated, especially toward the apertural end; sutures dis-tinct, depressed, strongly oblique; wall smooth, nearly transparent,finely perforate; aperture broadly elliptical, sometimes tending tobecome terminal. Length, up to 0.50 mm.; breadth, 0.15 mm.;thickness, 0.10 mm.It has occurred rather commonly at the shallow water stations:12 and 24 fathoms off Nairai, Fiji, and 12 fathoms off Levuka, Fiji.Specimens were also obtained from 7 fathoms off Rotonga.BOUVINA GLOBULOSA CushmanPlate 8, Figure 4Bolivina globidosa Cushman, Contr. Cushman Lab. Foram. Res., vol. 9, p. 80,pi. 8, figs. 9a, h, 1933; Cushman Lab. Foram. Res. Special Publ. No. 9,p. 146, pi. 19, fig. "30, 1937.Test small, elongate, tapering gradually from the subacute initialend to the greatest breadth formed by the last two chambers, peripheryrounded; chambers inflated, more or less globose, increasing ratheruniformly in size as added; sutures distinct, depressed, somewhatsigmoid, slanting backward but a small amount from the horizontal;wall smooth, finely perforate; aperture comparatively large, at thebase of the last-formed chamber and forming a loop-shaped opening.Length of holotype, 0.70 mm.; breadth, 0.40 mm.; thickness, 0.15 mm.The type is from Albatross station H3786, lat. 12?07'00" N., long.137?18'00" W., m 2,883 fathoms. It. br. rad. oz.This is a small species but is rather widely distributed in the Alba-tross collections. It has usually not occurred in any considerablenumbers at any particular station. The data for these are given intable 13. No specimens were found at any of the shallow-waterstations about the various islands. TROPICAL PACIFIC FORAMINIFERA OF "ALBATROSS" 29Table 13. ? Bolivina globulosa?material examined U.S.N.M.No. 30 BULLETIN 161, UNITED STATES NATIONAL MUSEUMend subacute, apertural end broadly rounded, periphery acute butnot keeled, the early chambers often with short backward-pointingspines; chambers distinct, about as high as broad but much over-lapping so that the visible portion of the chamber in the early stagesis apparently 2 or 3 times as broad as high; sutures distinct, but onlyslightly depressed, only slightly oblique; wall nearly transparentexcept toward the base of the chamber where it becomes opaque dueto the large close-set perforations; apertm"e elongate, comma-shaped.Length, 0.25 mm.; thickness, 0.10 mm.The types are from Albatross station H3989, South Pass, Likieb,K mile north, in 468 fathoms, at 42.6? F., crs. co. s.This is a very distmctive species, occurring in small numbers butat numerous Albatross stations, as will be seen m table 14. Its dis-tribution is comparatively limited as the position of these stationsshows them all to be in the general region of the Marshall Islands.The only shallow-water station at which the species occurred is thatof Rongelap Atoll, Marshall Islands.Table 14. ? Bolivina -pseudopygmaea?material examined U.S.N.M.No. TROPICAL PACIFIC FORAMESTIFERA OF "ALBATROSS" 31toward the apertural end, where height and breadth are often aboutequal; sutures distinct, shghtly Hmbate, obhquely curved, forming anangle of about 30?-40? with the horizontal, slightly depressed in theadult portion; wall finely perforate, smooth, except for the earlyportion, which has numerous, fine, longitudinal costae, sometimesrunning up halfway of the length of the test; aperture elongate, nar-row at the base, and somewhat expanded at the upper end. Length,0.35 mm.; breadth, 0.10 mm.; thickness, 0.03-0.04 mm.This species has previously been known only from the Atlantic, buttypical specimens occur commonly at Vavau Anchorage, TongaIsland; in Niau Lagoon and off Niau; 12 fathoms off Nairai, Fiji; andslightly less common inside the lagoon at Pinaki Atoll. There is asingle record for it in the Albatross material at station H3915, PinakiAtoll, 3.5 miles southeast, in 860 fathoms, 37.0? F., glob. maug.BOLIVINA SUBRETICULATA ParrPlate 9, Figure 2Bolivina reticulata H. B. Brady (not Hantken), Rep. Voy. Challenger, Zoology,vol. 9, p. 426, pi. 53, figs. 30, 31, 1884.?Egger, Abh. kon. bay. Akad. Wiss.Miinchen, Cl. ii, vol. 18, p. 295, pi. 8, figs. 33, 34, 1893.?Millett, Journ.Roy. Micr. Soc, 1900, p. 547. ? Chapman, Journ. Linn. Soc. Zool., vol. 30,p. 405, 1910.?Pearcey, Trans. Roy. Soc. Edinburgh, vol. 49, p. 1013,1914. ? Heron-Allen and Earland, British Antarctic Exped., Zool., vol. 6,p. 135 [?], 1922.?Hanzawa, Jap. Journ. Geol. Pal., vol. 4, p. 39 (list), 1925(1926). ? Yabe and Hanzawa, Jap. Journ. Geol. Pal., vol. 4, p. 50, 1925(1926).?Chapman, New Zealand Geol. Survey Pal. Bull. 11, p. 40, pi. 9,fig. 5, 1926.Bolivina subreticulata Parr, Proc. Roy. Soc. Victoria, vol. 44, p. 12, pi. 1, figs.21a, h, 1932. ? Cushman, Cushman Lab. Foram. Res. Special Publ. No. 9,p. 148, pi. 19, figs. 24-26, 1937.Test small, in front view rhomboid, thickest along the median lineand with sharp edges; chambers numbermg about fourteen in themegalospheric form, but more in the microspheric form, much longerthan wide, slightly inflated in the later portion of the test; suturesdistinct, limbate, sinuous, with processes of varying length on theTable 15. ? Bolivina subreticulata?material examined U.S.N.M.No. 32 BULLETIN 161, UNITED STATES NATIONAL MUSEUMposterior margin; wall calcareous, finely perforate, and ornamentedin the early part of the test with a few irregular costae, later with anetwork of raised lines formed by the projecting processes extendingmore or less across the face of each chamber; aperture bolivine,elongate-oval ; color white. Length, up to 0.45 mm. ; breadth, 0.40 mm.This species occurred at three Albatross stations in this Pacificmaterial, as listed in table 15.BOUVINA VARIABIUS (Williamson)Plate 9, Figure 3Texlularia variabilis Williamson, Rec. Foram. Great Britain, p. 76, pi. 6, figs.162, 163, 1858.Bolivina variabilis Chaster, 1st Rep. Southport Soc. Nat. Sci., pp. 59, 69, 1890-1891 (1892). ? Heron-Allen and Earland, Journ. Roy. Micr. Soc, 1909,p. 336; Proc. Roy. Irish Acad., vol. 31, pt. 64, p. 68, 1913; Journ. Roy.Micr. Soc, 1916, p. 43; Trans. Linn. Soc. London, ser. 2, vol. 11, p. 240,1916.?CusHMAN, U. S. Nat. Mus. Bull. 104, pt. 3, p. 49, pi. 4, figs. 3a, b,1922. ? Heron-Allen and Earland, Journ. Roy. Micr. Soc, 1930, p. 81. ? Ctjshman, Cushman Lab. Foram. Res. Special Publ. No. 9, p. 158, pi. 16,figs. 6, 12-14, 1937.Test of the early portion somewhat compressed, later more inflated,periphery rounded but toward the apertural end occasionally some-what compressed at the margin, even appearing carinate, the widthincreasing very gradually toward the apertural end; early chamberslow, close set, not inflated, later ones high and more inflated ; suturesof the early portion slightly limbate, later becoming depressed andsomewhat sigmoid; waU smooth but very coarsely perforate; apertureelongate, slightly loop-shaped, at the base of the inner margin of thelast-formed chamber. Length, up to L30 mm.; breadth, 0.45 mm.;thickness, 0.20 mm.The species is abundant in Niau Lagoon and rare off Fiji, 40-50fathoms, and rare also at Vavau Anchorage, Tonga Islands. ThereTable 16. ? Bolivina variabilis?material examined U.S.N.M.No. TROPICAL PACIFIC FORAMINIFERA OF "ALBATROSS" 33 are three records for the species from the Albatross material in deeperwater, which are given in table 16. This seems to be identical withWilliamson's species, which occurs typically off the British Isles buthas been widely recorded elsewhere.BOLIVINA cf. PAULA Cushman and CahillPlate 9, Figure 4Bolivina paula Cushman and Cahill, MS., in Cushman and Ponton, FloridaState Geol. Survey Bull. 9, p. 84, pi. 12, figs. 6a, b, 1932.?Cushman andCahill, U. S. Geol. Surv. Prof. Paper 175A, p. 26, pi. 8, figs. 14a, b, 1933.?Cushman, Cushman Lab. Foram. Res. Special Publ. No. 9, p. 91, pi. 11,fig. 9, 1937.Test minute, about 3 times as long as broad, much compressed,periphery subacute, sides for the most part nearly parallel, initial endtapering; chambers numerous, often 12 or more pairs in the adulttest, increasing somewhat in height as added, some of the earliestones being very low; sutures distinct, very slightly if at all depressed,slightly limbate, rather strongly curved backward; wall smooth, fmelyperforate; aperture an elongate, somewhat comma-shaped opening;in the median line of the apertural face. Length, 0.30-0.35 mm.breadth, 0.15 mm.; thickness, 0.06-0.08 mm.This species has been known hitherto only from the Miocene ofAmerica. The specimen here figured is from Makemo Lagoon, Pau-motu Islands, and seems identical.BOUVINA ABBREVIATA Heron-Allen and EarlandPlate 9, Figure 5Bolivina limbata H. B. Brady var. abbreviata Heron-Allen and Earland,Journ. Linn. Soc. Zool., vol. 35, p. 622, pi. 36, figs. 25-27, 1924.Bolivina abbreviata Cushman, Cushman Lab. Foram. Res. Special Publ. No. 9,p. 143, pi. 18, figs. 34, 35, 1937.Test usually short and stout, 1}2-2H times as long as broad, some-what compressed, periphery in end view broadly rounded, early portionincreasing rapidly in breadth, in the adult with the sides nearlyparallel; chambers distinct, early ones nearly 2-3 times as long asbroad, increasing in relative height, until, in the adult, the height andbreadth may be about equal, slightly if at all inflated; sutures distinct,slightly limbate, usually slightly curved, forming an angle of 20?-35?with the horizontal; wall smooth, rather coarsely perforate, the per-forations tending to become arranged in definite lines; aperture nar-row, elongate, opening at the inner edge of the last-formed chamber.Length, 0.25-0.30 mm.; breadth, 0.15 mm.; thickness, 0.10 mm.The types of this species are from off Lord Howe Island in thePacific. It also is recorded from off Raine Island, Torres Straits, in155 fathoms. Our figured specimen is longer than the other specimens 34 BULLETIN 161, UNITED STATES NATIONAL MUSEUMfigured previously, but the early portion is entirely typical. In theAlbatross material it has occurred at station H3989, South Pass,Likieb, K mile north, in 468 fathoms, and at H3978, Wotju Island,Elmore Atoll, 6 miles southeast, in 1,068 fathoms.BOLIVINA LIGULARTA SchwagerPlate 9, Figures 6, 7Bolivina ligularia Schwager, Novara-'Exped. Geol. Theil, vol. 2, p. 25, pi. 7,fig. 102, 1866?CusHMAN, Cushinan Lab. Foram. Res. Special Publ. No. 9,p. 14, pi. 14, figs. 3-5, 1937.Test elongate, two or three times as long as broad, initial endsubacute, apertural end broadly rounded, sides of the adult nearlyparallel but slightly lobulate, compressed, periphery rounded; cham-bers distinct, not inflated, about as high as broad; sutures distinct,very slightly depressed, only slightly oblique; wall smooth, nearlytransparent; aperture broadly elliptical. Length of Recent specimen,0.40 mm.This species was originally described by Schwager from the Plioceneof Kar Nicobar.The Albatross material yields two specimens: U. S. N. M. No. 24811,from station H3829, lat. 14? 56' 00" S., long. 148? 48' 00" W., 860fathoms, wh. co. s. glob. vol. part.; and U.S.N.M. No. 24813, fromstation H3900, midway between Hikueru and Marokau, l,372fathoms,35.7?F., glob. oz. Genus LOXOSTOMA Ehrenberg, 1854Loxostomum Ehrenberg, Mikrogeologie, pi. 27, fig. 19, 1854. ? Cushman, Cush-man Lab. Foram. Res. Special Publ. No. 1, p. 252, 1928.Loxostoma Howe, Journ. Pal., vol. 4, p. 329, 1930.Proroporus (part) of authors (not Ehrenberg, 1854).Bolivina (part) of authors.Genotype.?By designation, Loxostomum subrostratum Ehrenberg.Test elongate, usually compressed, early portion often slightlytwisted; early chambers biserial with the aperture as in Bolivina atthe base of the apertural face, but m the adult tending to becomeuniserial and the aperture failing to reach the base of the chamber,finally becoming terminal. Cretaceous to Recent.This genus represents a further development from Bolivina, inwhich the aperture becomes terminal at the same time that thechambers become uniserial, a combination of the chambers seen in agreat many other groups of Foraminifera . There are a number of well-characterized species in the Pacificmaterial, some of which also exist in the West Indian region of theAtlantic. TROPICAL PACIFIC FORAMINIFERA OF "ALBATROSS" 35LOXOSTOMA LIMBATUM (H. B. Brady)Plate 10, Figure 1Bolivina limbata H. B. Brady, Quart. Journ. Micr. Sci., vol. 21, p. 27, 1881;Rep. Voy. Challenger, Zoology, vol. 9, p. 419, pi. 52, figs. 26-28, 1884; Quart.Journ. Geol. Soc, vol. 44, p. 8 (table), 1888. ? Howchin, Trans. Proc. Roy, Soc.South Australia, vol. 12, p. 8, 1889. ? Chapman, Proc. Zool. Soc. London,1895, p. 23.?MiLLETT, Journ. Roy. Micr. Soc, 1900, p. 543.?Chapman,Journ. Linn. Soc. Zool., vol. 28, pp. 187, 382, 1900-1902.?Sidebottom,Mem. Proc. Manchester Lit. Philos. Soc, vol. 48, pt. 2, p. 15, 1904; vol.49, No. 5, p. 15, 1905. ? Dakin, Rep. Ceylon Pearl Oyster Fish., vol. 5,p. 234, 1906.?Chapman, Journ. Linn. Soc Zool., vol. 30, p. 32, pi. 4, fig. 83,1907.?Bagg, Proc. U. S. Nat. Mus., vol. 34, p. 138, 1908.?Sidebottom,Mem. Proc. Manchester Lit. Philos. Soc, vol. 54, pt. 3, p. 13, 1910. ? Chap-man, Journ. Linn. Soc. Zool., vol. 30, p. 404, 1910; Proc. Roy. Soc. Victoria,vol. 22, p. 275, 1910.?CuSHMAN, U. S. Nat. Mus. Bull. 71, pt. 2, p. 47, fig. 78,1911; Carnegie Inst. Washington Publ. 291, p. 33, 1919; U. S. Nat. Mus.Bull. 100, vol. 4, p. 135, pi. 19, fig. 5, 1921.?Heron-Allen and Earland,British Antarctic Exped., Zoology, vol. 6, p. 137, 1922. ? Cushman, U. S.Nat. Mus. Bull. 104, pt. 3, p. 36, pi. 7, fig. 3, 1922.?Heron-Allen andEarland, Journ. Linn. Soc. Zool., vol. 35, p. 622, 1924; Journ. Roy. Micr.Soc, 1924, p. 145.?Cushman, B. P. Bishop Mus. Bull. 27, p. 125, 1925(1926).?Chapman, New Zealand Geol. Survey Pal. Bull. 11, p. 40, pi. 9,fig. 6, 1926; Rep. Great Barrier Reef Comm., vol. 3, pp. 38, 39 (lists), 1931.Loxostoma limhatum Cushman, Cushman Lab. Foram. Res. Special Publ. No. 9,p. 186, pi. 21, figs. 26-29, 1937.Test elongate, 3 or 4 times as long as broad, much compressed, taper-ing at the ends, the middle portion with the sides nearly parallel,thickest along the median line thence thinning toward the lateralmargins which are subacute, the whole test usually somewhat twisted;chambers rapidly increasing in height as added until in the adultthey are as high as wide, slightly inflated; sutures very distinct,strongly limbate, rather strongly curved backward; wall calcareous,smooth, coarsely perforate; aperture elongate, oval, in the adultbecoming terminal. Length, up to about 1.00 mm.; breadth, 0.35-0.40 mm.; thickness, 0.20-0.25 mm.This species is a common one in the Indo-Pacific region and alsooccurs in typical form but much more rarely in the West Indianregion. Many records for this species, especially those withoutfigures, make it difficult to determine whether they are typical orbelong to some of the varieties. In our material the typical form ofthe species has been rare, occurring only at Levuka, Fiji, in 12 fathoms,and from two Albatross stations: H3830, lat. 15?00'30" S., long.148?47'00" W., in 1,257 fathoms, wh. co. s. glob. vol. part., and H3984,entrance to South Pass, Rongelap, 1 ji miles north in 746 fathoms, 39? F.,crs. CO. s. The following variety is much more common. 36 BULLETIN 161, UNITED STATES NATIONAL MUSEUMLOXOSTOMA UMBATUM (H. B. Brady) var. COSTULATUM (Cushman)Plate 10, Figures 2-4Bolivina limbata Chapman, Journ. Linn. Soc. Zool., vol. 28, p. 409, pi. 36, fig. 12,1901. ? Heron-Allen and Earland, Trans. Zool. Soc. London, vol. 20,p. 646, pi. 50, figs. 1-4, 1915.Bolivina limbata (H. B. Brady) var. costulata Cushman, Carnegie Tnst. WashingtonPubl. 311, p. 26, pi. 3, fig. 8, 1922; U. S. Nat. Mas. Bull. 104, pt. 3,p. 37, 1922; Carnegie Inst. Washington Publ. 342, p. 19, pi. 5, figs. 2, 3, 6,1924; Publ. 344, p. 76, 1926, B. P. Bishop Mus. BuU. 27, p. 125, 1925 (1926).Loxostoma limbata (H. B. Brady) var. costulata Palmer and Bermudez, Mem. Soc.Cubana Hist. Nat., vol. 9, p. 248, 1935. ? Cushman, Cushman Lab. Foram.Res. Special Publ. No. 8, p. 187, pi. 21, figs. 30, 31, 1937.Variety dijffering from the typical form of the species mainly in theaddition of longitudinal costae usually few in number and mostly nearthe base of the test. Length, up to 2.00 mm.; breadth, 0.40 mm.;thickness, 0.20 mm.This variety is much commoner than the typical form wherever thespecies occurs and often has a larger test and is usually stronglytwisted. In our Pacific material this variety has occurred mostabundantly at Guam Anchorage, Ladrone Islands, in 21 fathoms, butspecimens also occur at Nairai, Fiji, 24 fathoms; Vavau Anchorage,Tonga Islands, 18 fathoms; Rotonga, 7 fathoms; Rangiroa; and alsoat the Albatross stations in deeper water given in table 17.Table 17. ? Loxostoma limbatum var. costulatum?material examined U.S.N.M.No. TROPICAL PACIFIC FORAMmiFERA OF "ALBATROSS" 37Test elongate, somewhat compressed, peripheiy lobed, early portiontapering, remainder of the test with the breadth rather uniform;chambers distinct, the early ones rather uniformly increasing in sizeas added, later ones becoming more mflated and more distinctlyseparated ; sutures distinct, depressed, strongly oblique, nearly straight;wall ornamented by a distinct raised ridge somewhat above the suture,the periphery of which is often toothed and the later chambers some-what roughened; aperture elongate, terminal in the adult, with aslight lip. Length, 0.75 mm.; breadth, 0.40 mm..; thickness, 0.25mm.Most of the records for this species are from the Indo-Pacific region.The types were from off New Guinea. There are a number of otherrecords from this same general region some of which have no figuresaccompanying them. There are also other records for the speciesfrom other areas both fossil and Recent, but the figures accompanyingthese records show rather distinctly that they are not the same as thisIndo-Pacific species of Brady. The only specimen of this speciesthat we have from this area is from the Paumotu Islands, Albatrossstation H3870, village, point of Anaa Atoll, S. 50?, 5 miles west, in1,110 fathoms, 36.0? F., fne.co.s.pter.oz.glob.LOXOSTOMA CONVALLARIUM (Millett)Plate 10, Figure 6Bolivina convallaria Millett, Journ. Roy. Micr. Soc, 1900, p. 544, pi. 4, figs. 6a,b.?Heron-Allen and Earland, Trans. Zool. Soc. London, vol. 20, p. 647,1915.Loxostoma convallarium Cushman, Cushman Lab. Foram. Res. Special Publ.No. 9, p. 191, pi. 22, figs. 11-13, 1937.Loxostoma vertebrate Cushman (in part), ibid., p. 194.Test very elongate, slender, about 4 times as long as broad, periph-ery serrate in front view, rounded in end view; chambers distinct,inflated, as high as broad throughout, early ones smooth except for aspine at the peripheral angle, later ones very deeply excavated on thelower side and crenulate at the border, tending to become somewhatuniserial in the adult; sutures distinct, depressed, very strongly so inthe adult, oblique; wall of early portion smooth, later portion smoothexcept for the crenulate border; aperture elongate, oval, with a dis-tinct lip, tending to become terminal.This species is close to L. vertebrate (Cushman), and the two may beeasily confused. L. convallarium occurs in our shallow water collec-tions from off Fiji, 40-50 fathoms; oft" Nairai, 12 fathoms; off Levuka,12 fathoms; and Rotonga, 7 fathoms.LOXOSTOMA VERTEBRALE (Cushman)Bolivina verlebralis Cushman, Carnegie Inst. Washington Publ. 342, p. 20, pi.3, figs. 3, 4, 1924. 38 BULLETIN 161, UNITED STATES NATIONAL MUSEUMLoxostoma vertebrale Cushman, Cushman Lab. Foram. Res. Special Publ. No. 9,p. 194, pi. 22, figs. 14, 15, 1937.Test very elongate, slender, 5 to 6 times as long as broad, taperingfrom the subacute initial end, but very gradually, much twisted, insome adult specimens making a complete turn, periphery lobulate;chambers numerous, distinct, somewhat inflated, in the adult higherthan broad, basal margin in the- adult typically projecting abovethe previous chamber; sutures distinct, somewhat limbate in the earlyportion, deeply depressed in the adult; wall in the early stages withindistinct, longitudinal costae, in the later chambers smooth, exceptnear the lower margin, which has numerous, very short, fine spines;aperture in the adult tending to become terminal, elongate, curved,with a slight lip. Length, up to 0.75 mm.; breadth, 0.15 mm.A few specimens occurred in our material from Vavau Anchorage,Tonga Islands, 18 fathoms; from Rotonga, 7 fathoms; and from offNairai, 12 fathoms. The species is easily confused with L. convallarium(Millett).LOXOSTOMA KARRERIANUM (H. B. Brady) var. CARINATUM (Millett)Plate 10, Figure 7Bolivina karreriana H. B. Brady var. carinata Millett, Journ. Roy. Micr. Roc,1900, p. 546, pi. 4, figs. Sa, 6.?Cushman, U. S. Nat. Mus. Bull. 71, pt. 2,p. 41, figs. 66a, 6, 1911; Bull. 100, vol. 4, p. 132, pi. 27, fig. 1, 1921.?Hanzawa,Jap. Journ. Geol. Pal., vol. 4, p. 39 (table), 1925 (1926).Loxostoma karrerianum (H. B. Brady) var. carinatum Cushman, Cushman Lab.Foram. Res. Special Publ. No. 9, p. 186, pi. 21, figs. 18-20, 1937.Variety differing from the typical in the much greater depression ofthe whole test, the periphery acute and carinate, aperture elongate.The only station at which this variety was represented is AlbatrossH3896, Tekokoto Atoll, 1 mile east, Paumotu Islands, 617 fathoms.loxostoma MAYORI (Cushman)Plate 11, Figures 1, 2Bolivina mayori Cushman, Carnegie Inst. Washington Publ. 311, p. 27, pi. 3,figs. 6, 6, 1922; U. S. Nat. Mus. Bull. 104, pt. 3, p. 40, 1922; Carnegie Ints.Washington Publ. 342, p. 19, pi. 6, figs. 3, 4, 1924; Publ. 344, p. 76, 1926.Loxostoma mayori Bermudez, Mem. Soc. Cubana Hist. Nat., vol. 9, p. 197,1935. ? Cushman, Cushman Lab. Foram. Res. Special Publ. No. 9, p. 195,pi. 22, figs. 16-21, 1937.Test elongate, slender, often arcuate or somewhat twisted, somewhatcompressed, periphery rounded, the early portion somewhat taperingbut later with the sides nearly parallel throughout their length;chambers numerous, distinct, becoming gradually higher as added untilin the later development the height becomes greater than the breadth,and the last-formed chambers uniserial but usually with oblique suturesand somewhat more rounded in form than the early portion; sutures TROPICAL PACIFIC FORAMINIFERA OF "ALBATROSS' 39distinct, liinbate, slightly depressed, more so in the later portion, in theearly portion oblique and nearly straight, later becoming sigmoid asthe chambers tend to become uniserial; wall coarsely perforate, theperforations often in longitudinal lines and the surface with a fewshort, weakly developed costae; aperture in the adult terminal, nar-rowly elliptical, often with a slight, rounded lip. Length, up to 2.00mm.; breadth, 0.30 mm.; thickness, 0.20 mm.The figured specimens are from off Nairai, Fiji, in 24 fathoms, wherethe species is very common and well developed. It also occurs offLevuka, Fiji, 12 fathoms; Viva Anchorage, Fiji, 3 fathoms; MokaujarAnchorage, Fiji; Vavau Anchorage, Tonga Islands, 18 fathoms;Guam Anchorage, Ladrone Islands, 21 fathoms; Port Lotten, Kersail,Caroline Islands, and at one Albatross station, II3840, lat. 17?21'00" S.,long. 149?15'00" W., in 1,585 fathoms, vol. m. Judged from the factthat this is typically a shallow-water species probably these specimensin the Albatross collections represent individuals carried by the cur-rents and deposited in deeper water, a frequent occurrence about ocean-ic islands. LOXOSTOMA ROSTRUM CushmanPlate 11, Figures 3, 4Loxostoma rostrum Cushman, Contr. Cushman Lab. Foram. Res., vol. 9, p. 82,.pi. 8, figs. 13a, b, 1933; Cushman Lab. Foram. Res. Special Publ. No. 9,p. 195, pi. 22, figs. 3, 4, 1937.Test small, elongate, about three times as long as broad, the earlyportion rapidly expanding but the remainder of the test with the sidesnearly parallel, the last-formed chamber somewhat produced, periph-ery broadly rounded; chambers fairly distinct, only slightly inflatedin the later portion, increasing rather rapidly in height toward theTable 18. ? Loxostoma rostrum?material examined U.S.N.M.No. 40 BULLETIN 161, UNITED STATES NATIONAL MUSEUM apertural end; sutures fairly distinct, very slightly depressed towardthe apertural end, becoming gradually more oblique as chambers areadded; wall smooth, very finely perforate; aperture in the adultterminal, ovate, without a distinct lip. Length, 0.75 mm.; breadth,0.25 mm.; thickness, 0.15 mm.The types of this species are from Albatross station H3840, lat.17?21'00'' S., long. 149?15'00" W., in 1,585 fathoms, vol. m.While it has not occm-red in any considerable numbers, neverthelessit has been foimd from a number of different stations at which thecharacters of the species are held rather uniformly. From the recordsit seems to be a species of comparatively deep water and did not occurin any of the material from the shallow water about the various islands.Subfamily ReussellinaeGenus REUSSELLA Galloway, 1933Reussella Galloway, Man. Foram., p. 360, 1933.Genoholotype.?Verneuilina spinulosa Reuss.Test distinctly triserial, triangular in transverse section, broadestat the apertural end; wall calcareous, finely or coarsely perforate;aperture elongate, oblique, from the base of the chamber in theapertural face. Cretaceous to Recent.REUSSELLA SPINULOSA (Reuss)Plate 11, Figures 5-8Verneuilina spinulosa Reuss, Denkschr. Akad. Wiss. Wien, vol. 1, p. 374, pi. 47,fig. 12, 1850.?Egger, Neues Jahrb., 1857, p. 292, pi. 9, figs. 17, 18.?H. B.Brady, Rep. Voy. Challenger, Zoology, vol. 9, p. 384, pi. 47, figs. 1-3, 1884.?Balkwill and Wright, Trans. Roy. Irish Acad., vol. 28, p. 333, 1885. ? H. B. Brady, Journ. Roy. Micr. Soc, 1887, p. 896.?H. B. Brady, Parker,and Jones, Trans. Zool. Soc. London, vol. 12, p. 219, pi. 42, fig. 15 (notfig. 14), 1888.?Wright, Proc. Roy. Irish Acad., ser. 3, vol. 1, p. 472, 1891.?Dakin, Rep. Ceylon Pearl-Oyster Fish., vol. 5, p. 233, 1896.?Chapman,Journ. Linn. Soc. London, vol. 28, p. 185, 1900.? Millett, Journ. Roy. Micr.Soc, 1900, p. 11. ? Sidebottom, Mem. Proc. Manchester Lit. Philos. Soc,vol. 49, No. 5, p. 10. pi. 2, fig. 5, 1905.?Rhumbler, Zool. Jahrb. Abt., Syst.,vol. 24, p. 61, pi. 5, fig. 53, 1906.?Bagg, Proc. U. S. Nat. Mus., vol. 34,p. 132, 1908. ? Heron-Allen and Earland, Journ. Roy. Micr. Soc, 1908,p. 327. ? Sidebottom, Mem. Proc. Manchester Lit. Philos. Soc, vol. 54,pt. 3, p. 11, 1910. ? Chapman, Journ. Linn. Soc. London, vol. 30, p. 402,1910.?Curhman, U. S. Nat. Mus. Bull. 71, pt. 2, p. 55, figs. 88a, b, 89,1911.?Pearcey, Trans. Linn. Soc Edinburgh, vol. 49, p. 1039, 1914.?Chapman, Biol. Res. Endeavour, vol. 3, pt. 1, p. 311, 1915; Australian Geol.Survey Bull. 72, p. 13. 1917. ? Sidebottom, Journ. Roy. Micr. Soc, 1918,p. 22.?Cushman, Carnegie Inst. Washington Publ. 291, p. 34, 1919;Proc U. S. Nat. Mus., vol. 59, p. 51, 1921; U. S. Nat. Mus. Bull. 100, vol. 4,p. 141, pi. 27, fig. 5, 1921; Carnegie Inst. Washington Publ. 311, p. 28, - pi. 3, fig. 11, 1922. ? Heron-Allen and Earland, British Antarctic TROPICAL PACIFIC FORAMUSflFERA OF "ALBATROSS" 41Exped., Zool., vol. 6, p. 124, 1922; Journ. Roy. Micr. Soc, 1924, p. 138;Journ. Linn. Soc. Zool., vol. 35, p. 619, 1924. ? Chapman, Union of SouthAfrica Fish. Mar. Biol. Survey Rep. No. 3 (1922), p. 11, 1924.?Cushman,Carnegie Inst. Washington Publ. 342, p. 21, 1924. ? Hanzawa, Jap. Journ.Geol. Pal., vol. 4, p. 39 (table), 1925 (1926).?Cushman, Carnegie Inst.Washington Publ. 344, p. 76, 1926.?Koch, Ber. Schweiz. Pal. Ges., voL19, p. 726 (list), 1926.?Hada, Trans. Sapporo Nat. Hist. Soc, vol. 11,pt. 1, p. 11, 1929. ? Macfadyen, Geol. Survey Egypt, p. 51, pi. 1, figs. 8a, 6,1930 (1931).Reussia spinulosa Schwager, Boll. Com. Geol. Ital., vol. 8, p. 26, 1877. ? Cush-man, Contr. Cushman Lab. Foram. Res., vol. 3, pt. 1, p. 68, pi. 14, fig. 16,1927; Cushman Lab. Foram. Res. Special Publ. No. 1, p. 253, pi. 36, fig. 14;pi. 37, fig. 14, 1928. ? Cushman and Kellett, Proc. U. S. Nat. Mus., vol.75, art. 25, p. 9, pi. 3, figs. 10a, b, 1929.?Cushman, Florida State Geol.Survey Bull. 4, p. 48, pi. 8, figs. 17a, 6, 1930.?Cole, Florida State Geol.Survey Bull. 6, p. 43, pi. 2, fig. 6, 1931.?Hada, Sci. Rep. Tohoku Imp.Univ., ser. 4, Biol., vol. 6, p. 133, fig. 90, 1931. ? Cushman and Ponton,Florida State Geol. Survey Bull. 9, p. 84, pi. 12, figs. 14-16, 1932.?Cush-man and Cah[ll, U. S. Geol. Surv. Prof. Paper 175A, p. 27, pi. 9, figs, la, 6,1933.Reussella spinulosa Galloway, Man. Foram., p. 360, pi. 33, fig. 4, 1933. ? Cushman, Cushman Lab. Foram. Res. Special Publ. No. 4, pi. 22, fig. 17,1933; No. 5, pi. 28, figs. 4a-c, 1933. ? Bermudez, Mem. Soc. Cubana Hist.Nat., vol. 9, p. 197, 1935. ? Hadley, Journ. Elisha Mitchell Sci. Soc, voL52, No. 1, p. 36, 1936. ? Yabe and Asano, Science Rep. Tohoku Imp. Univ.,ser. 2 (Geol.), vol. 19, No. 1, p. 122 (36), 1937.?Asano, Saito Ho-on KaiMus. Res. Bull. 13, p. 116, pi. 16, fig. 3, 1937.?Chapman and Parr, Aus-tralasian Antarctic Exped., ser. C, vol. 1, pt. 2, p. 94, 1937.Test pyramidal, 3-sided, triangular in transverse section, anglesof the test usually acute, the sides flat or slightly concave, initialend acutely pointed, initial end and angles of chambers often withsharp spines more or less strongly developed; sutures distinct, oftenlimbate, usually not raised but occasionally strongly so; wall ofmedium thickness, calcareous, hyaline, usually distinctly perforate,in some cases thickened and the surface roughened, occasionallywith definite beadlike ornamentation near the periphery of thechamber; apertural end of test bluntly angled, the edges of the cham-bers thickened, the aperture itself a curved slit at the base of theinner margin of the chamber. Length, up to 1 mm.; breadth,0.50-0.70 mm.This species is a very variable one especially in the amount ofspines ornamenting the test. It is a widely distributed species, occur-ring at least as far back as the Miocene and being widely distributedat the present time particularly in rather shallow water. In thePacific material it has occurred at numerous Albatross stations, datafor which are given in table 19. In the shallow water material ithas occurred about Fiji near Nairai, 12 and 24 fathoms; off Lcvuka,Fiji, 12 fathoms; Viva Anchorage, Fiji, 3 fathoms; Mokaujar Anchor-age, Fiji; and at the deeper station 40-50 fathoms off Fiji. It has 42 BULLETIN 161, UNITED STATES NATIONAL MUSEUM also occurred at Vavau Anchorage, Tonga Islands, 18 fathoms;Pinaki Island, Paumotu Islands; Makemo Lagoon, Paumotu Islands;off Rotonga, 7 fathoms; Rongelap Atoll, Marshall Islands; off Ran-giroa, 21 fathoms; Guam Anchorage, Ladrone Islands; and at PortLotten, Kersail, Caroline Islands.Table 19. ? Reussella spinulosa?material examined U.S.N.M.No. TROPICAL PACIFIC FORAMLNIFERA OF "ALBATROSS"Table 19. ? Reussdla spinulosa?material examined?Continued 43 44 BULLETIN" 161, UNITED STATES NATIONAL MUSEUMbroader in the last-formed chamber. Length, up to 0.55 mm.; diam-eter, 0.25 mm.The types are from 7 fathoms off Rotonga.This is apparently a species of shallow warm water and has a widedistribution as the following records of our material show: In thevicinity of the Fiji Islands, 12 and 24 fathoms off Nairai; 12 fathomsoff Levuka; 3 fathoms, Viva Anchorage; and 40-50 fathoms off Fiji;as well as at Mokaujar Anchorage. Specimens also were found com-mon at Vavau Anchorage, Tonga Islands, in 18 fathoms, and rarespecmiens occurred in the material from Rongelap Atoll, MarshallIslands. TRIMOSINA PERFORATA CushmanPlate 12, Figure 6Trimosina perforata Cushman, Journ. Washington Acad. Sci., vol. 19, p. 157,figs, la, h (in text), 1929.Test small, generally triangular in both side and end views, anglesacute; chambers triserial throughout, rapidly increasing in size asadded, the angles of the chambers usually protruding and early cham-bers sometimes twisted; sutures distinct, not depressed, slightly lim-bate; wall calcareous, finely perforate with coarser perforations alongthe borders near the sutures connecting with the interior by definitetubules, generally smooth, thin and nearly transparent ; apertural faceconvex, with numerous ridges and irregular projections, apertureconsisting of a long narrow opening connecting with the basal mar-gin by a narrow slit at a sharp angle to the axis of the main opening,bordered by a distinct thickened lip, the apertural face with numerousirregularly rounded openings. Length, 0.50 mm.; breadth, 0.35 mm.This species, which was described from 40-50 fathoms off Fiji,seems to be a very limited one in its distribution; it has not beenrecorded elsewhere, although it is fairly common at the type locality.TRIMOSINA SIMPLEX CushmanPlate 12, Figure 7Trimosina simplex Cushman, Journ. Washington Acad. Sci., vol. 19, p. 158, figs.2o, h (in text), 1929.Test of medium size, triangular in both side and end views, anglesacute; chambers triserial throughout, uniformly increasing in size asadded, angles of the chambers slightly spinose, the outer angle thick-ened, almost carinate; sutures distinct, not depressed, very slightlylimbate, rather evenly curved; wall calcareous, coarsely perforate,especially along the borders, smooth, fairly thick but translucent;apertural face slightly convex, fairly smooth, the aperture elongatewithout a lip, and with a few supplementary openings in the center ofthe terminal face. Length, up to 1.00 mm.; breadth 0.50 mm. TROPICAL PACIFIC FORAMINIFERA OF "ALBATROSS" 45This species, like perforata, was described from rich collections takenat a depth of 40-50 fathoms off Fiji and has not been obtained in anyof the other material. It is larger than perforata, and the outline ofthe chambers in the early portion is very distinct in the two species.Genus MIMOSINA Millett, 1900Mimosina Millett, Journ. Roy. Micr. Soc, 1900, p. 547.Genotype.?By designation, Mimosina hystrix Millett.Test triserial in the young, later biserial; chambers with a singleacicular spine at the outer angle; wall calcareous, vesicular; apertureof two parts, one rounded and nearly terminal, the other below nearthe inner rim of the chamber, more elongate, arched. Recent.MIMOSINA PACIFICA CushmanPlate 12, Figure 8Mimosina pacifica Cushman, Contr. Cushman Lab. Foram. Res., vol. 9, p. 77,pi. 8, figs. 3a, b, 1933.Test irregularly triserial except in the adult portion, which becomesbiserial, tapering from an acute initial end to the broad rounded aper-tural end, nearly circular in end view; chambers distinct, inflated;sutures of the early portion indistinct, later ones slightly depressed;wall calcareous, finely perforate, the initial portion with short spineswhich in the later portion become largely confined to the base of thechamber; aperture double in the adult, a narrow slit at the base of theinner margin of the last-formed chamber above, which is a low, elong-ate, supplementary opening. Length of holotype, 0.35 mm. ; diameter,0.25 mm.The types are from off Levuka, Fiji, 12 fathoms.This distinctive small species also occurs at Mokaujar Anchorage,Fiji, and Rongelap Atoll, Marshall Islands.Genus CHRYSALIDINELLA Schubert, 1907Chrysalidinella Schubert, Neues Jahrb. fiir Min., vol. 25, p. 242, 1907.Chrysalidina of authors (not d'Orbigny).Genoholotype.?Chrysalidina dimorpha H. B. Brady.Test tapering, triangular in transverse section, early chambers tri-serial, later ones becoming uniserial; wall calcareous, perforate;aperture in the adult cribrate, consisting of numerous rounded open-ings scattered over the triangular apertural face. Miocene to Recent.This genus is directly derived from Reussella. The stages in de-velopment are very nicely seen in material from the station at 40-50fathoms off Fiji, and show that it has a very close connection withReussella at this station. As already noted it cannot have been derivedfrom Chrysalidina, as is held by some authors, as that very largecoarsely arenaceous genus belongs in the family Verneuilinidae. 46 BULLETIN 161, UNITED STATES NATIONAL MUSEUMCHRYSAUDINELLA DIMORPHA (H. B. Brady)Plate 13, Figure 1Chrysalidina dimorpha H. B. Brady, Quart. Journ. Micr. Sci., vol. 21, p. 54,1881; Rep. Voy. Challenger, Zoology, vol. 9, p. 388, pi. 46, figs. 20, 21, 1884. ? Egger, Abh. kon. bay. Akad. Wiss. Miinchen, CI. ii, vol. 18, p. 274, pi. 6,figs. 47, 51, 52, 1893.?Chapman, Proc. Zool. Soc. London, 1895, p. 20.MiLLETT, Journ. Roy. Micr. Soc, 1900, p. 12, pi. 1, fig. 14. ? Dakin, Rep.Ceylon Pearl-Oyster Fish., vol. 5, p. 233, 1906.?Ctjshman, U. S. Nat.Mus. Bull. 71, pt.2, p. 60, figs. 96, 97, 1911. ? Heron-Allen and Earland,Trans. Zool. Soc. London, vol. 20, p. 632, pi. 47, figs. 29-31, 1915.CuSHMAN, U. S. Nat. Mus. Bull. 100, vol. 4, p. 144, 1921; Bull. 104, pt. 3,p. 65, pi. 19, fig. 4, 1922; Carnegie Inst. Washington Publ. 342, p. 22,1924.?Hanzawa, Jap. Journ. Geol. Pal., vol. 4, p. 39 (table), 1925 (1926).?CusHMAN, Contr. Cushman Lab. Foram. Res., vol. 3, pt. 1, p. 254, pi.14, fig. 16, 1927; Cushman Lab. Foram. Res. Special Publ. No. 1, pi.36, figs. 15, 16; pi. 37, fig. 16, 1928; Journ. Washington Acad.Sci., vol. 19, p. 159, figs. 3a, b, 1929; Cushman Lab. Foram. Res. SpecialPubl. No. 5, pi. 28, figs. 5a, 6, 1933. ? Bermudez, Mem. Soc. Cubana Hist.Nat., vol. 9, p. 198, 1935. ? Yabe and Asano, Science Rep. Tohoku Imp.Univ., ser. 2 (Geol.), vol. 19, No. I, p. 122 (36), 1937.Test elongate, tapering, triangular in transverse section, the sidesnearly equal, flat, or somewhat carinate, angles acute, early portionconsisting of chambers arranged triserially, the later portion withchambers in a single series; sutures distinct, slightly limbate, curved,not raised; wall smooth but distinctly and somewhat coarsely perfo-rate; aperture in the early stages similar to that in Reussella, in theadult numerous, scattered more or less irregularly over the terminalface of the chamber. Length, up to 0.50 mm.; breadth, 0.25-0.35mm.This is a widely distributed species in the Indo-Pacific, but it hasnot occurred widely in our material. The best specimens are from40-50 fathoms off Fiji.Subfamily UvigerininaeGenus UVIGERINA d'Orbigny, 1826Uvigerina d'Orbigny, Ann. Sci. Nat., vol. 7, p. 268, 1826.Genotype.?By designation, Uvigerina pigmea d'Orbigny.Test generally triserial, elongate, fusiform, rounded in transversesection; chambers inflated, rounded; wall calcareous, perforate;aperture terminal, rounded, with neck and lip, often with a spiraltooth and internal twisted tube. Eocene to Recent.UVIGERINA AMPULLACEA H. B. BradyPlate 13, Figures 2-6Uvigerina asperula Czjzek var. ampullacea H. B. Brady, Rep. Voy. Challenger,Zoology, vol. 9, p. 579, pi. 75, figs. 10, 11, 1884.^ ? Sidebottom, Journ. Roy.Micr. Soc, 1918, p. 146. TROPICAL PACIFIC FORAMINIFERA OF "ALBATROSS" 47Uvigerina ampullacea Eggkk, Abh. kon. bay. Akad. Wiss. Munchen, CI. ii,vol. 18, p. 313, pi. 9, fig. 37, 1893.?Cushman, U. S. Nat. Mus. Bull. 71, pt. 3,p. 102, pi. 42, fig. 3, 1913; Proc. U. S. Nat. Mus., vol. 5G, p. 620, 1919; U. S.Nat. Mus. Bull. 100, vol. 4, p. 274, pi. 55, fig. 7, 1921; Bull. 104, pt. 4, p.162, pi. 42, figs. 5, 6, 1923.?Hanzawa, Jap. Journ. Gcol. Pal., vol. 4, p. 42(table), 1925 (1926). ? Yabe and Hanzawa, Jap. Journ. Geol. Pal., vol. 4,p. 51,1925 (1926). ? Cushman, Bull. Scripps Inst. Oceanogr., Tech. Ser., vol.1, p. 158, 1927. -Chapman and Parr, Australasian Antarctic Exped.,ser. C, vol. 1, pt. 2, p. 94, 1937.Table 20.? Uvigerina ampullacea?material examined U.S.N.M-No. 48 BULLETIN 161, UNITED STATES NATIONAL MUSEUMTest elongate, somewhat fusiform, or the basal portion somewhatinflated and later chambers becoming nearly miiserial; chambersinflated, later ones particularly rather distinct, early ones sometimesobscured by the ornamentation of the surface; sutures slightly de-pressed, fairly distinct; wall ornamented by numerous, fine, short,rather evenly distributed spines, covering the entire surface, often evenon the neck itself; aperture elongate, cylindrical, in well-preservedspecimens with an everted lip, apertural opening being rounded.Length, up to 1 mm.; breadth, 0.20-0.35 mm.This has proved to be a rather common species in our TropicalPacific material, but it is a species of comparatively deep water andhas not occurred at the shallower water stations about the variousslands. Its distribution with data is given in table 20.UVIGERINA PORRECTA H. B. BradyPlate 13, Figures 7, 8Uvigerina porrecta H. B. Brady, Quart. Journ. Micr. Sci., vol. 19, p. 60, pi. 8^figs. 15, 16, 1879; Rep. Voy. Challenger, Zoology, vol. 9, p. 577, pi. 74, figs.21-23, 1884; Quart. Journ. Geol. Soc, vol. 44, p. 9 (table), 1888.?Egger,Abh. kon. bay. Akad. Wiss. Munchen, Cl. ii, vol. 18, p. 315, pi. 9, figs. 57, 63,1893.?Chapman, Journ. Linn. Soc. Zool., vol. 28, p. 403, 1902.?Millett,Journ. Roy. Micr. Soc, 1903, p. 269. ? Chapman, Journ. Linn. Soc. Zool.,vol. 30, p. 414, 1910.?CusHMAN, U. S. Nat. Mus. Bull. 71, pt. 3, p. 99, pi.44, fig. 2, 1913. ? Heron-Allen and Earland, Trans. Zool. Soc. London,vol. 20, p. 675, 1915. ? Sidebottom, Journ. Roy. Micr. Soc, 1918, p. 147. ? CusHMAND, U. S. Nat. Mus. Bull. 104, pt. 4, p. 169, 1923.?Heron-Allenand Earland, Journ. Linn. Soc. Zool., vol. 35, p. 626, 1924. ? Cushman,Carnegie Inst. Washington Publ. 342, p. 27, pi. 7, figs. 6, 7, 1924; CushmanLab. Foram. Res. Special Publ. No. 5, pi. 28, fig. 10, 1933. Chapmanand Parr, Australasian Antarctic Exped., ser. C, vol. 1, pt. 2, p. 95, 1937.Test much elongated, the early chambers in a close spiral, laterones drawn out and considerably separated from one another, in anirregular loose spiral, the later chambers particularly being somewhatconcave below, the peripheral angle angular and projecting, uppersurface convex and ornamented by coarse longitudinal costae whichproject slightly at the periphery making it serrate; sutures distinct,depressed; wall calcareous, usually opaque, ornamented as alreadynoted; aperture with an elongate tubular neck, but the lip usuallyonly slightly developed. Length, up to 0.65 mm.; breadth, 0.20 mm.The records for this species are almost enthely from the Pacific.The other records referred to this are probably not the same. Ourspecimens are mostly from off Levuka, Fiji, in 12 fathoms, where itis common. It also occurs in shallow water near Nairai, Fiji, but thefew other records are from Albatross stations, data for which aregiven in table 21. These, strangely enough, are all from the westernpart of the area in which the Albatross dredged. The followingvariety is very distinct. TROPICAL PACIFIC FORAMLNIFERA OF "ALBATROSS" 49Table 21.? Uvigerina porrecta?material examined U.S.N.M.No. 50 BULLETIN 161, UNITED STATES NATIONAL MUSEUMThis species described by Scliwager from the Phocene of KarNicobar is a fairly common one in various parts of the Pacific. In ourpresent material it is not nearly so abundant as is the preceding species.It may be distinguished from U. ampullacea by the stouter form of thetest, which does not have the chambers so definitely concentrated atthe base, in the adult stage tending rather to become biserial thanuniserial. In our material it is represented particularly by thefoUowing variety. TROPICAL PACIFIC FORAMtNIFERA OF "ALBATROSS" 51 acicular spine, the apertural end tapering with a very distinct, some-times rather elongate, cyhndrical neck and shght hp.The types are from 21 fathoms, Guam Anchorage, Ladrone Islands.Besides the type locahty, this variety occm-s off Nairai, Fiji, and at12 fathoms off Levuka, Fiji. There are numerous Albatross stationsin deeper water, the data for which are given in table 23.Table 23.? Uvigerina proboscidea var. vadescens?material examined U.S.N.M.No. 52 BULLETIN 161, UNITED STATES NATIONAL MUSEUMThe types are from Vavau Anchorage, Tonga Islands. It is a smallspecies and probably has been overlooked but is distinctly biseriallike other members of this genus.Genus SIPHOGENERINA Schlumberger, 1883Siphogenerina Schlumberger, Feuille Jeun. Nat., aim. 13, p. 117, 1883.Sagrina (part) of authors (not d'Orbigny).Genotype.?By designation, Siphogenerina costata Schlumberger.Test elongate, cylindrical, with the early stages typically triserial,rounded in section, later imiserial; wall calcareous, perforate; aperturein the adult terminal, with a distinct neck, phialine lip and internaltube. Eocene to Recent.This genus is well developed in the Pacific and shows three of theprincipal developments of ornamentation in the group, longitudinallycostate, finely spinose, and strongly pitted. Some of the specimensare very similar to Rectobolivina and perhaps should be placed in thatgenus, which is one closely allied to Siphogenerina but derived evi-dently from Bolivina. There is a great difference in the microsphericand megalospheric forms in the shape of the test, which in the micro-spheric has a sharply tapering base, while the megalospheric form isbroadly rounded at the base.SIPHOGENERINA VIRGULA (H. B. Brady)Plate 15, Figures 2, 3Sagrina virgula H. B. Brady, Quart. Journ. Micr. Sci., vol. 19, p. 275, pi. 8,figs. 19^-21, 1879; Rep. Voy. Challenger, Zoology, vol. 9, p. 583, pi. 76, figs.4-7 (not 8-10), 1884.?MiLLETT, Journ. Roy. Micr. Soc, 1903, p. 271.?Heron-Allen and Earland, Trans. Zool. Soc. London, vol. 20, p. 676,pi. 51, figs. 4, 5, 1915.?SiDEBOTTOM, Journ. Roy. Micr. Soc, 1918, p. 148. ? Heron-Allen and Earland, British Antarctic {Terra Nova) Exped., Zool-ogy, vol. 6, p. 186, 1922.Siphogenerina (Sagrina) virgvla Egger, Abh. kon. bay. Akad. Wiss. Munchen,CI. II, vol. 18, p. 318, pi. 9, fig. 27, 1893.Siphogenerina virgula Cushman, Carnegie Inst. Washington Publ. 342, p. 29,pi. 8, figs. 3, 4, 1924; Proc. U. S. Nat. Mus., vol. 67, art. 25, p. 14, pi. 2,figs. 7, 8; pi. 4, figs. 8, 9, 1926.Test elongate, somewhat tapering, composed of a number of in-flated chambers, the early ones in a uvigerine arrangement, later onesuniserial, the uniserial portion making up most of the test, surfacehispid; aperture large, terminal, with a broad everted lip, the borderof which often has a series of backwardly pointing, long, acicular spines.Length, up to 1.75 mm.; diameter, 0.30 mm.There is a tendency in many of the specimens to reduce greatly theearly stages so that in the megalospheric form nearly the entire testis uniserial. This typically Indo-Pacific species has occurred at anumber of stations in our Pacific material, but all from the shoal- TROPICAL PACIFIC FORAMINIFERA OF "ALBATROSS" 53 water material where it is often very abundant. It is abundant atsome of the stations off Fiji, in 12 fathoms off Nairai; 12 fathoms offLevuka; Mokaujar Anchorage, Fiji; and Viva Anchorage, Fiji. Itoccurs less commonly at Vavau Anchorage, Tonga Islands, 18fathoms; Rotonga, 7 fathoms; and Port Lotten, Kersail, CarolineIslands.SIPHOGENERINA DIMORPHA (Parker and Jones) var. PACIFICA CushmanPlate 15, Figure 4Uvigerina (Sagrina) dimorpha Parker and Jones (part), Philos. Trans. Roy. Soc,vol. 155, p. 420, 1865.Sagrina dimorpha H. B. Brady (part). Rep. Voy. Challenger, Zoology, vol. 9,p. 582, pi. 76, figs. 1-3, 1884.?Bagg, Proc. U. S. Nat. Mus., vol. 34, p. 152,1908. ? Schubert, Abh. geol. Reichs., vol. 20, pt. 4, p. 86, 1911. ? Side-bottom, Jouru. Roy. Micr. Soc, 1918, p. 148. ? Heron-Allen and Earland,British Antarctic {Terra Nova) Exped., Zoology, vol. 6, p. 186, 1922.Siphogenerina dimorpha Egger, Abh. kon. bay. Akad. Wiss. Miinchen, CI. ii,vol. 18, p. 317, pl. 9, fig. 30, 1893.?Cushman, U. S. Nat. Mus. Bull. 71, pt. 3,p. 106, pl. 45, figs. 3, 4, 1913; BuU. 100, vol. 4, p. 279, pl. 56, fig. 8, 1921.Siphogenerina dimorpha (Parker and Jones) var. pacifica Cushman, Proc. U. S.Nat. Mus., vol. 67, art. 25, p. 13, pl. 2, fig. 9; pl. 3, figs. 6a, b, 1926; B. P.Bishop Mus. Bull. 119, p. 126, 1934.Table 24. ? Siphogenerina dimorpha var. pacifica- 54 BULLETIN 161, UNITED STATES NATIONAL MUSEUMVariety differing from the typical in the greater number of uniserialchambers, the cylindrical form of the test, and the much more promi-nent depressions at the base of the chambers along the sutures.This variety is widely distributed m the Pacific in Recent samples,and it is also recorded by Schubert from the Globigerina marl of lateTertiary age from Panaras in the Bismarck Archipelago, and by Kochfrom the late Tertiary of Kabu, Java. Most of the records are fromoffshore stations, and the same holds true in the Albatross materialimder discussion. The species has not occurred at any of the shoal-water stations, all of them being from the Albatross dredgmgs, datafor which are given in table 24.SIPHOGENERINA COLUMELLARIS (H. B. Brady)Plate 15, Figure 5Sagrina columellaris H. B. Brady, Quart. Journ. Micr. Sci., vol. 21, p. 64, 1881;Rep. Voy. Challenger, Zoology, vol. 9, p. 581, pi. 75, fig?. 15-17, 1884.?Chapman, Proc. Zool. Soc. London, 1895, p. 36. ? Fornasini, Rend. Accad.Sci. Bologna, vol. 1, p. 55, fig., 1896-97; Mem. Accad. Sci. 1st. Bologna, ser. 5,vol. 8, p. 391, fig. 41, 1900. ? Chapman, Journ. Linn. Soc. Zool., vol. 28, p.404, 1902.?MiLLETT, Journ. Roy. Micr. Soc, 1903, p. 270, pi. 5, figs. 10, 11.?Bagg, Proc. U. S. Nat. Mus., vol. 34, p. 151, 1908. ? Heron-Allen andEarland, Trans. Zool. Soc. London, vol. 20, p. 676, 1915. ? Sidebottom,Journ. Roy. Micr. Soc, 1918, p. 148, pi. 5, fig. 24. Heron-Allen andEarland, British Antarctic {Terra Nova) Exped., Zoology, vol. 6, p. 185,1922; Journ. Linn. Soc. Zool., vol. 35, p. 626, 1924.Siphogenerina {Sagrina) columellaris EijGER, Abh. kon. bay. Akad. Wiss. Munchen,.CI. II, vol. 18, p. 316, pi. 9, figs. 28, 31, 33, 1893.Siphogenerina columellaris Silvestri, Atti Accad. Pont, Nuovi Lincei, ann. 55,p. 1, figs. 1, 2, 1902.?Cushman, U. S. Nat. Mus. Bull. 71, pt. 3, p. 104,pi. 47, figs. 2, 3, 1913; Bull. 100, vol. 4, p. 276, pi. 56, fig. 1, 1921; CarnegieInst. Washington Publ. 342, p. 29, pi. 8, figs. 5, 6, 1924; Proc. U. S. Nat.Mus., vol. 67, art. 25, p. 11, pi. 2, figs. 4, 11; pi. 3, figs. 1-4; pi. 4, figs. 5, 6;pi. 5, figs. 9-11, 1926.Siphogenerina glabra Schlumberger, Feuille Jeun. Nat., ann. 13, p. 118, pi. 3,fig. 1, 1883. ? Chapman and Parr, Australasian Antarctic Exped., ser. C,,vol. 1, pt. 2, p. 96, 1937.?OvEY, Journ. Roy. Micr. Soc, vol. 47, p. 119, 1937^Test elongate, subcylindrical, somewhat tapering, straight or veryslightly curved; chambers comparatively few, those of the uniserialportion well rounded, shorter than broad; sutures only slightly con-stricted; aperture large, terminal, with a very short tubular neck andbroad flaring lip; wall smooth. Length, up to 2.25 mm.; diameter^0.50 mm.This is the least common of the species of the genus in our material.It has occurred in only one of the shoal-water stations, in 24 fathomsoff Nairai, Fiji, and rarely at three of the Albatross stations, data forwhich are given in table 25. The figured specimen is a megalosphericone in which the proloculum is very large, but the general charactersof the test are typical. TROPICAL PACIFIC FORAMLNIFERA OF "ALBATROSS" 55Table 25. ? Sipliogenerina columellaris?material examined TJ.S.N.M.No. 56 BULLETIN 161, UNITED STATES NATIONAL MUSEUMSiphogenerina costata Schlumberger, Feuille Jeun. Nat., ann. 13, p. 118, fig. 13,1883.Test elongate, cylindrical or tapering, chambers of the imiserialportion broader than long, surface marked by several rather widelyseparated, well-developed costae, each extending nearly the length ofthe test, independent of the sutures; aperture typically with a shorttubular neck and well-developed flaring lip. Length, up to nearly2 mm.; breadth, up to 0.55 mm.This is the commonest species of the genus in the area. It is moreabundant in the shallow-water material from about the various islands,although there are numerous records for it from the Albatross dredg-Table 26. ? Siphogenerina raphana?material examined U.S.N.M.No. TROPICAL PACIFIC FORAMmiFERA OF "ALBATROSS" 57ings as will be seen by the data given in table 26. From shallowwater we have specimens from 40-50 fathoms off Fiji; off Levuka,Fiji, 12 fathoms; off Nairai, Fiji, 12 and 24 fathoms; MokaujarAnchorage, Fiji; Makemo Lagoon, Pamnotu Islands; Pinaki, PaumotuIslands; off Rangiroa; off Rutavu; Vavau Anchorage, Tonga Islands,18 fathoms; Guam Anchorage, Ladrone Islands, 21 fathoms; RongelapAtoll, Alarshall Islands; and Port Lotten, Kersail, Caroline Islands.Genus ANGULOGERINA Cushman, 1927Angulogerina Cushman, Contr. Cushman Lab. Foram. Res., vol. 3, p. 69, 1927.Uvigerina (part) of authors.Genoholotype.? Uvigerina angulosa Williamson.Test triserial, elongate, the whole test angled, with three flattenedsides and distinct angles; wall calcareous, perforate; aperture at theend of a short neck, with a phialine lip. Eocene to Recent.Instead of the distribution of this genus being in temperate shallowwaters, as has been recorded by some authors, there are a number ofcharacteristic species found in shallow tropical waters of the Atlantic,but in the Pacific it occurs at very considerable depths, where it isoften abundant, as oflF the California coast. Specimens are rare inthe Pacific material that we have, and only two species are represented.ANGULOGERINA ALBATROSSI Cnshman var. ORNATA CushmanPlate 15, Figures 10, 11Angulogerina albatrossi Cushman var. ornata Cushman, Contr. Cushman Lab.Foram. Res., vol. 8, p. 45, pi. 6, figs. 13, 14, 1932.This variety is akeady loiown from fairly deep water in the easternPacific. The last chamber is usually smooth, but the early ones showlongitudinal costae and the chambers are decidedly angular. Ourspecimens are all from the Albatross dredgings, data for which are givenin table 27.Table 27. ? Angulogerina albatrossi var. ornata?material examined U.S.N.M.No. 58 BULLETIN 161, UNITED STATES NATIONAL MUSEUMANGULOGERINA OCCIDENTALIS (Cushman)Plate 15, Figure 12Uvigerina angulosa Cushman (not Williamson), Carnegie Inst. WashingtonPubl. 311, p. 34, pi. 5, figs. 3, 4, 1922.Uvigerina occidentalis Cushman, U. S. Nat. Mus. Bull. 104, pt. 4, p. 169, 1923.Angulogerina occidentalis Cushman, Florida State Geol. Surv. Bull. 4, p. 50, pi. 9,figs. 8, 9, 1930. ? Cushman and Parker, Proc. U. S. Nat. Mus., vol. 80, art.3, p. 17, 1931.?Cole, Florida State Geol. Surv. Bull. 6, p. 44, pi. 2, fig. 5,1931. ? Cushman and Laiming, Journ. Pal., vol. 5, p. 112, pi. 12, figs. 15, 16,1931. Cushman, Contr. Cushman Lab. Foram. Res., vol. 8, p. 46, pi. 6,figs. 15, 16, 1932. ? Cushman and Ponton, Florida State Geol. Surv. Bull. 9,p. 14, pi. 1, fig. 30, 1932. ? Cushman and Cahill, U. S. Geol. Surv. Prof.Paper 175A, p. 28, pi. 9, figs. 8a, b, 1933. ? Campbell, Journ. Ent. Zool., vol.27, No. 3, p. 46, fig. 10, 1935. ? Hadlet, Journ. Elisha Mitchell Sci. Soc, vol,52, No. 1, p. 35, 1936.?Kleinpell, Mioc. Stratigraphy Calif., p. 30G, 1939.Test minute, elongate, triangular in transverse section, the peripherysomewhat lobulate; chambers distinct, those of the last-formed por-tion becoming more distinct and remote; sutures distinct and depressed ; wall ornamented with longitudinal costae on all but the last-formedchambers in the adult; apertural end drawn out into a short tubularneck and slight phialine lip. Length, 0.30 mm.; diameter, 0.12 mm.The figured specimen does not show the uniserial stage very highlydeveloped. This species, originally described from the Atlantic inthe West Indian region, is found rarely also in the Pacific about theoceanic islands. We have records for three Albatross stations, givenin table 28. The species is also known from the Miocene onward,both in Florida and California. TROPICAL PACIFIC FORAMINIFERA OF "ALBATROSS" 59TRIFARINA BRADYl CuahmanPlate 15, Figure 13Rhabdogonium tricarinatum H. B. Brady (not Vaginulina Iricarinata d'Orbigny),Rep. Voy. Challenger, Zoology, vol. 9, p. 525, pi. 67, figs. 1-3, 1884; Journ.Roy. Micr. Soc, 1887, p. 910.?H. B. Brady, Parker, and Jones, Trans.Zool. Soc. London, vol. 12, p. 223, pi. 45, fig. 3, 1888.?Wright, Ann. Mag.Nat. Hist., ser. 6, vol. 4, p. 449, 1889; Proc. Roy. Irish Acad., ser. 3, vol. 1,p. 484, 1891. ? Egger, Abh. kon. bay. Akad. Wiss. Miinchen, CI. ii, vol. 18,p. 355, pi. 11, figs. 49, 50; pi. 12, figs. 36-38, 1893.Trifarina bradyi Cushman, U. S. Nat. Mus. Bull. 104, pt. 4, p. 99, pi. 22, figs.3-9, 1923; Carnegie Inst. Washington Publ. 342, p. 27, pi. 7, fig. 5, 1924.?Yabe and Hanzawa, Jap. Journ. Geol. Pal., vol. 4, p. 50, 1925 (1926). ? Hanzawa, Jap. Journ. Geol. Pal., vol. 4, p. 41 (table), 1925 (1926).?Cush-man, Contr. Cushman Lab. Foram. Res., vol. 1, pt. 4, p. 86, 1926. ? Chap-man and Parr, Journ. Linn. Soc. Zool., vol. 36, p. 386, pi. 20, fig. 52, 1926.?Cushman, Contr. Cushman Lab. Foram. Res., vol. 5, p. 96, pi. 13, fig. 39,1929; Cushman Lab. Foram. Res. Special Publ. No. 4, pi. 22, fig. 15, 1933;No. 5. pi. 28, figs. 15a-c, 1933; B. P. Bishop Mus. Bull. 119, p. 127, pi. 15,fig. 11, 1934. Palmer and Bermudez, Mem. Soc. Cubana Hist. Nat., vol.10, p. 293, 1936. ? Chapman and Parr, Australasian Antarctic Exped., ser.C, vol. 1, pt. 2, p. 98, 1937.?OvEY, Journ. Roy. Micr. Soc, vol. 47, p. 121,1937.?AsANO, Journ. Geol. Soc. Japan, vol. 45, No. 538, p. 615, pi. 17 (6),fig. 25, 1938.Test elongate, slightly tapering toward either end, often somewhattwisted, triangular in transverse section, with carinae at three angles,thin and fairly high, running from the initial end to the aperture,even onto the neck itself; chambers distinct, those of the earlierportion at least irregularly spiral, later ones less distinctly so; suturesdistinct but not depressed; wall thin, translucent, finely punctate,smooth; aperture terminal, central, at the end of a short tubularneck, usually with a phialine lip. Length, 0.40 mm.; breadth,0.18 mm.This species is widely distributed both in the Atlantic and Pacific.It is possible that the Pacific form may be distinguished from theAtlantic one, the latter having the sides more concave and the carinaeat the angles higher and more prominent with a thinner keel while it isless distinctly perforate. This is not the same as d'Orbigny 's Vaginu-lina iricarinata, which is a peculiar form with the aperture at oneangle. This species occurs most abundantly in deep water, as will beseen by the data of the long list of Albatross stations given in table 29.Besides these, specimens have occurred in 12 fathoms off Nairai, Fiji;12 fathoms off Levuka, Fiji; and in 7 fathoms off Rotonga. 408333?41- 60 BULLETIN 161, UNITED STATES NATIONAL MUSEUMTable 29. ? Trifarina bradyi?material examined TROPICAL PACIFIC FORAMINIFERA OF "ALBATROSS" 61SIPHONODOSARIA (?) sp. (T)Plate 15, Figure 14There is a single specimen from Albatross station H3920 figured onour plate that may belong to this genus. More specimens must beavailable before its full characters can be definitely known. EXPLANATION OF PLATESPlate 1Figures 1-4. Bolivinita qiiadrilatera (SehweLger). X 50. Fig. 1, Young specimen.Fig. 2, Adult: a, Front view; b, side view; c, apertural view.Albatross H3843. Fig. 3, a, Front view; b, apertural view. Fig.4, a, Front view; b, side view; c, apertural view. Albatross H3841.Plate 2(In all cases: a, Front view; b, apertural view)Figures 1-4, 6. Bolivinella folia (Parker and Jones). X 70. Figs. 1, 2, MokaujarAnchorage, Fiji. Figs. 3, 4, 6, Makemo Lagoon.5, 8. Bolivinella folia (Parker and Jones) var. ornata Cushman. X 70.Levuka, Fiji.7a, b. Bolivinella margaritacea Cushman. X 70. Rutavu.9, 10. Nodogenerina (?) milletti Cushman. X 70. Guam Anchorage,Ladrone Islands.11a, b. Nodogenerina (?) spinata Cushman. X 40. Albatross H3866.Plate 3Figures 1-4. Buliminella milletti Cushman. X 70. Figs. 1, 2, 4, MokaujarAnchorage. Fig. 2, a, Front view; b, apertural view. Fig. 3,Niau Lagoon.5, 6. Buliminella madagascariensis (d'Orbigny) var. spicata Cushmanand Parker, new name. X 70. 0?F Fiji, 40-50 fathoms. Fig. 5,a. Front view; b, apertural view.7-9. Buliminoides williamsoniana (H. B. Brady). X 70. Levuka, Fiji.Fig. 8, a. Front view; b, apertural view.10, 11. Bulimina fijiensis Cushman. X 70. Fig. 10, Nairai, Fiji, a,Front view; b, side view; c, apertural view. Fig. 11, Levuka,Fiji, a. Front view; b, apertural view.12a, b. Bulimina roslrata H. B. Brady. X 70. Albatross H3900. a. Frontview; b, apertural view.13o, b. Bulimina elongata d'Orl)igny var. subulala Cushman and Parker.X 75. Albatross H3977. a. Front view; b, apertural view.14a, b. Robertina subcylindrica (H. B. Brady). X 50. Albatross H3858.a, Front view; b, end view. 62 BULLETIN 161, UNITED STATES NATIONAL MUSEUMPlate 4(In all cases: a, Front view; h, side view; c, apertural view)Figures lo-c. Virgulina schreibersiana Czjzek. X 50. Port Lotten, KersaibCaroline Islands.2-5. Virgulina complanata Egger. X 50. Fig. 2, Albatross H3903.Figs. 3, 4, Albatross H3838. Fig. 5, Albatross H3798.6o-c. Virgulina fijiensis Cushman. X 50. Nairai, Fiji.Plate 5Figures 1-3, Virgulina pauciloculata H. B. Brady. Fig. 1, X 50. Viva Anchor-age, Fiji, a, Front view; b, side view; c, apertural view. Figs.2, 3, X 55. Off Niau. a, Front view; 6, side view; c, aperturalview.4 a, b. Bolivina vadescens Cushman. X 55. Nairai, Fiji, a, Front view;b, apertural view.5-8. Bolivina hantkeniana H. B. Brady. X 55. Albatross H3840. Fig. 7,a, Front view; b, apertural view.Plate 6Figures 1 a, b. Bolivina spinea Cushman. X 55. Fiji, c. Front view; b, aperturalview.2 o, b. Bolivina robusta H. B. Brady. X 55. Albatross H3883. a, Frontview; b, apertural view.3, 4. Bolivina subangularis H. B. Brady. X 75. Viva Anchorage, Fiji.Fig. 3, a, Front view; b, side view; c, apertural view.5, 6. Bolivina subangularis H. B. Brady var. lineata (Cushman). X 50.Levuka, Fiji.7, 8. Bolivina rhomboidalis (Millett). X 75. Rangiroa. Fig. 7, a,Front view; b, side view; c, apertural view,Plate 7(In all cases: o, Front view; 6, apertural view)Figures 1 o, 6. Bolivina tortuosa H, B. Brady. X 55. Fiji.2, 3. Bolivina compacta Sidebottom. X 55. Fig, 2, Near Nairai, Fiji.Fig. 3, Albatross H3954,4 o, 6. Bolivina oceanica Cushman. X 55. Albatross H3838,5 o, b. Bolivina nitida H. B. Brady. X 55. Albatross H3989.6. Bolivina seminuda Cushman. X 55. Albatross H3804.7. Bolivina spinescens Cushman. X 55. Albatross H3829,Plate 8(In all cases: a. Front view; b, apertural view)Figures 1-3. Bolivina capitata Cushman. Fig. 1, X 50. Nairai, Fiji. Figs. 2,3, X 55. Fig. 2, Levuka, Fiji. Fig. 3, Rotonga.4 a, b. Bolivina globulosa Cushman. X 55. Albatross H3881.5, Bolivina subtenuis Cushman. X 55. Mokaujar Anchorage, Fiji.6 a, b. Bolivina pseudopygmaea Cushman X 55: Albatross H3989. TROPICAL PACIFIC FORAMINIFERA OF "ALBATROSS" 63Plate 9(In all cases: a, Front view; 6, apertural view)Figure 1. Bolivina striatula Cushmau. X 40. Lagoon, Pinaki Atoll.2. Bolivina subreticulata Parr. X 70. Albatross H3809.3 a, b. Bolivina variabilis (Williamson). X 40. Albatross H3905.4 a, b. Bolivina cf. paula Cushman and Cahill. X 55. Makemo Lagoon,Paumotu Islands.5 o, b. Bolivina abbreviata Heron-Allen and Earland. X 55. AlbatrossH3989.6, 7. Bolivina ligularia Schwager. X 55. 6, Albatross H3829. 7, AlbatrossH3900. Plate 10Figure 1. Loxostoma limbatum (H. B. Brady). X 40. Levuka, Fiji, a, Frontview; 6, apertural view.2-4. Loxostoma limbatum (H. B. Brady) var. costulatum (Cushman).Fig. 2, X 80. Nairai, Fiji, a, Front view; b, apertural view.Fig. 3, X 32. Guam Anchorage, Ladrone Islands, a, Front view;b, apertural view. Fig. 4, X 80. Levuka, Fiji, a, Front view;b, apertural view.5. Loxostoma lobatum (H. B. Brady). X 130. Albatross H3870.6. Loxostoma convallarium (Millett). X 95. 40-50 fathoms, off Fiji.a, Front view; b, apertural view.7. Loxostoma karrerianum (H. B. Brady) var. carinatum (MiUett).X 55. Albatross H3896.Plate 11(In all cases: a, Front view; b, apertural view)Figures 1, 2. Loxostoma mayori (Cushman). X 40. Nairai, Fiji.3, 4. Loxostoma rostrum Cushman. Fig. 3, X 85. Albatross H3945.Fig. 4, X 55. Albatross H3840.5-8. Reussella spinulosa (Reuss). X 40. Rongelab Atoll, MarshallIslands. Plate 12Figures 1-5. Trimosina orientalis Cushman. X 70. Figs. 1, 4, 5, Nairai, Fiji,o, a, Front views; b, b, apertural views. Fig. 2, Rotonga. a,Front view; b, side view; c, apertural view. Fig. 3, VavauAnchorage, Fiji, a, Front view; b, apertural view.6. Trimosina perforata Cushman. X 60. 40-50 fathoms, off Fiji.a, Front view; b, apertural view.7. Trimosina simplex Cushman. X 60. 40-50 fathoms, off Fiji.a, Front view; b, apertural view.8. Mimosina pacifica Cushman. X 70. Levuka, Fiji, a. Frontview; b, apertural view. 64 BULLETIN 161, UNITED STATES NATIONAL MUSEUMPlate 13(In all cases: a, Front view; b, apertural view)Figure 1. Chrysalidinella dimorpha (H. B. Brady). X 60. 40-50 fathoms,oflf Fiji.2-6. Uvigerina ampullacea H. B. Brady. Fig. 2, X 50. Albatross H3980.Fig. 3, X 55. Albatross H3991. Fig. 4, X 55. Albatross H3883.Fig. 5, X 50. Albatross H3798. Fig. 6, X 55. Albatross H3857.7, 8. Uvigerina porrecta H. B. Brady. X 55. Levuka, Fiji.9, 10. Uvigerina porrecta H. B. Brady, var. fimbriata Sidebottom. X 70.40-50 fathoms, off Fiji.Plate 14(In all cases: a, Front view; b, apertural view)Figures 1-4. Uvigerina proboscidea Schwager. X 50. Fig. 1, Albatross H3974.Fig. 2, Albatross H3969. Fig. 3, Albatross H3924. Fig. 4,Albatross H3798.5-9. Uvigerina proboscidea Schwager var. vadcscens Cushman. X 70.Fig. 5, Guam Anchorage, Ladrone Islands. Fig. 6, AlbatrossH3996. Figs. 7, 9, Albatross H3840. Fig. 8, Nairai, Fiji.Plate 15(In all cases: a, Front view; b, apertural view)Figure 1. Hopkinsina pacifica Cushman. X 120. Vavau Anchorage, TongaIslands.2, 3. Siphogenerina virgula (H. B. Brady). X 25. Nairai, Fiji.4. Siphogenerina dimorpha (Parker and Jones) var. pacifica Cushman.X 32. Albatross H3974.5. Siphogenerina columellaris (H. B. Brady). X 25. Albatross H3840.6-9. Siphogenerina raphana (Parker and Jones). Figs. 6, 7, X 32. Nairai,Fiji. Figs. 8, 9, X 25. Albatross H3843.10, 11. Angulogerina albatrossi Cushman var. ornata Cushman. X 40.Albatross H3989.12. Angulogerina occidentalis (Cushman). X 70. Albatross H3838.13. Trifarina bradyi Cushman. X 70. Nairai, Fiji.14. Siphonodosaria (?) sp. (?) X 70. Albatross H3920. INDEX abbreviata, Bolivina, 33.Bolivina limbata, 33.abyssorum, Nodosaria, 60.acaulis, Bolivina, 17.aculeata, Bulimina, 11.albatrossi ornata, Angulogerina, 57.ampullacea, Uvigerina, 46.Uvigerina asperula, 46.Angulogerina, 57.albatrossi ornata, 57.occidentalis, 58.angulosa, Uvigerina, 57, 58.apiculata, Bulimina elegantissima, 8.Buliminella, 8.Buliminella elegantissima, 8.arctica, Robertina, 9.asperula ampullacea, Uvigerina, 46.Bolivina, 15, 34.abbreviata, 33.acaulis, 17.capitata, 28.compacta, 20.convallaria, 37.globulosa, 28.hantkeniana, 15.karreriana carinata, 38.ligularia, 34.limbata, 35, 36.limbata abbreviata, 33.limbata costulata, 36.lobata, 36.mayori, 38.nitida, 25.oceanica, 24.cf. paula, 33.plicata, 15.pseudopygmaea, 29.quadrila'tera, 2.reticulata, 31.rhomboidalis, 19.robusta, 17.robusta compacta, 20.seminuda, 26.spinea, 16.spinescens, 27.striatula, 30.subangularis, 18.subangularis lineata, 19.subreticulata, 31.subtenuis, 29.textilarioides, 27.tortuosa, 20.vadescens, 15.variabilis, 32.vertebralis, 37. Bolivinella, 3.folia, 3.folia ornata, 5.margaritacea, 5.Bolivinita, 2.quadrilatera, 2.Bolivinitinae, 2.bradyi, Nodogenerina, 6.Trifarina, 58, 59.Brizalina, 15.buchiana, Bulimina, 10.Bulimina, 10.aculeata, 11.buchiana, 10.elegans, 11.elegantissima, 7.elegantissima apiculata, 8.elongata, 11.elongata subulata, 11.fijiensis, 11.marginata, 10.ovata, 11.rostrata, 10.spinosa, 11.subcylindrica, 9.williamsoniana, 8.Buliminella, 7.apiculata, 8.elegantissima apiculata, 8.madagascariensis spicata, 8.milletti, 7.Buliminidae, 7.Bulimininae, 10.Buliminoides, 8.williamsoniana, 8.capitata, Bolivina, 28.carinata, Bolivina karreriana, 38.carinatum, Loxostoma karrerianum, 38.Chrysalidina, 45.dimorpha, 45, 46.Chrysalidinella, 45.dimorpha, 46.Clidostomum, 15.columellaris, Sagrina, 54.Siphogenerina, 54.Siphogenerina (Sagrina), 54.compacta, Bolivina, 20.Bolivina robusta, 20.complanata, Virgulina, 13.Virgulina schreibersiana, 13.convallaria, Bolivina, 37.convallarium, Loxostoma, 37.costata, Siphogenerina, 52, 56.costulata, Bolivina limbata, 36.Loxostoma limbata, 36.Siphogenerina raphanus, 55.65 66 BULLETIN 161, UNITED STATES NATIONAL MUSEUM costulatum, Loxostoma limbatum, 36.Cucurbitina, 10.danvillensis, Hopkinsina, 51.dimorpha, Chrysalidina, 45, 46.Chrysalidinella, 46.Sagrina, 53.Siphogenerina, 53.Uvigerina (Sagrina), 53.dimorpha pacifica, Siphogenerina, 53.elegans, Bulimina, 11.elegantissima, Bulimina, 7.elegantissima apiculata, Bulimina, 8.Buliminella, 8.elongata, Bulimina, 11.elongata subulata, Bulimina, 11.Eouvigerininae, 5.fijiensis, Bulimina, 11.Virgulina, 14.fimbriata, Uvigerina porrecta, 49.folia, Bolivinella, 3.Textularia, 3.folia ornata, Bolivinella, 5.glabra, Siphogenerina, 54.globulosa, Bolivina, 28.Grammobotrys, 12.Grammostomum, 15.hantkeniana, Bolivina, 15.Heterohelicidae, 2.Hopkinsina, 51.danvillensis, 51.pacifica, 51.hystrix, Mimosina, 45.karreriana carinata, Bolivina, 38.karrerianum carinatum, Loxostoma, 38.ligularia, Bolivina, 34.limbata, Bolivina, 35, 36.Loxostoma, 36.limbata abbreviata, Bolivina, 33.limbata costulata, Bolivina, 36.limbatum, Loxostoma, 35.limbatum costulatum, Loxostoma, 36.lineata, Bolivina subangularis, 19.lobata, Bolivina, 36.lobatum, Loxostoma, 36.Loxostoma, 34.convallarium, 37.karrerianum carinatum, 38.limbata costulata, 36.limbatum, 35.limbatum costulatum, 36.lobatum, 36.mayori, 38.rostrum, 39.vertebrale, 37.Loxostomum subrostratum, 34.madagascariensis spicata, Buliminella, 8.margaritacea, Bolivinella, 5.marginata, Bulimina, 10.mayori, Bolivina, 38.Loxostoma, 38.milletti, Buliminella, 7.Nodogenerinaf?"), 6,Mimosina, 45.hystrix, 45.pacifica, 45.spinulosa, 43.nitida, Bolivina, 25. Nodogenerina, 5.bradyi, 6.Nodogenerina (?) milletti, 6.spinata, 6.nodosa, Sagrina, 6.Nodosaria abyssorum, 60.occidentalis, Angulogerina, 58.Uvigerina, 58.oceanica, Bolivina, 24.orientalis, Trimosina, 43.ornata, Angulogerina albatrossi, 57.Bolivinella folia, 5.ovata, Bulimina, 11.pacifica, Hopkinsina, 51.Mimosina, 45.Siphogenerina dimorpha, 53.pauciloculata, Virgulina, 14.cf. paula, Bolivina, 33.perforata, Trimosina, 44.pigmea, Uvigerina, 46.Pleurites, 10.plicata, Bolivina, 15porrecta, Uvigerina, 48.porrecta fimbriata, Uvigerina, 49.proboscidea, Uvigerina, 49.proboscidea vadescens, Uvigerina, 50.Proroporus, 15, 34.pseudopygmaea, Bolivina, 29.quadrilatera, Bolivina, 2.Bolivinita, 2.Textularia, 2.raphana, Siphogenerina, 55.raphanus, Sagrina, 55.Siphogenerina, 55.Siphogenerina (Sagrina), 55.Uvigerina (Sagrina), 55.raphanus costulata, Siphogenerina, 55.reticulata, Bolivina, 31.Reussella, 40.spinulosa, 40, 41.Reussellinae, 40.Reussia spinulosa, 41.Rhabdogonium tricarinatum, 59.rhomboidalis, Bolivina, 19.Textularia, 19.Robertina, 9.arctica, 9.subcylindrica, 9.robusta, Bolivina, 17.robusta compacta, Bolivina, 20.rostrata, Bulimina, 10.rostrum, Loxostoma, 39.Sagrina, 5, 15, 52.columellaris, 54.dimorpha, 53.nodosa, 6.raphanus, 55.virgula, 52.schreibersiana, Virgulina, 12.schreibersiana complanata, Virgulina, 13,seminuda, Bolivina, 26.simplex, Trimosina, 44.Siphogenerina, 52.columellaris, 54.(Sagrina) columellaris, 54.costata, 52, 56.dimorpha, 53= INDEX 67 Siphogenerina dimorpha pacifica, 53.glabra, 54.raphana, 55.raphanus, 55.(Sagrina) raphanus, 55.raphanus costulata, 55.virgula, 52.(Sagrina) virgula, 52.Siphonodosaria, 60.Siphonodosaria (?) sp. (?), 61.spicata, Buliminella madagascariensis,spinata, Nodogenerina (?), 6.spinea, Bolivina, 16.spinescens, Bolivina, 27.spinosa, Bulimina, 11.spinulosa, Mimosina, 43.Reussella, 40, 41.Reussia, 41.Verneuilina, 40.squammosa, Virgulina, 12.squamosa, Virgulina, 12.striatula, Bolivina, 30.Strophoconus, 12.subangularis, Bolivina, 18.lineata, Bolivina, 19.subcylindrica, Bulimina, 9.Robertina, 9.subreticulata, Bolivina, 31.subrostratum, Loxostomum, 34.subsquammosa, Virgulina, 13.subtenuis, Bolivina, 29.subulata, Bulimina elongata, 11.textilarioides, Bolivina, 27.Textularia folia, 3.quadrilatera, 2.rhomboidalis, 19.variabilis, 32.tortuosa, Bolivina, 20.tricarinatum, Rhabdogonium, 59. Trifarina, 58.bradyi, 58, 59.Trimosina, 43.orientalis, 43.perforata, 44.simplex, 44.Turrilininae, 7.Uvigerina, 46, 57.ampullacea, 46.angulosa, 57, 58.asperula ampullacea, 46.(Sagrina) dimorpha, 53.occidentalis, 58.pigmea, 46.porrecta, 48.porrecta fimbriata, 49.proboscidea, 49.proboscidea vadescens, 50.(Sagrina) raphanus, 55.Uvigerininae, 46.vadescens, Bolivina, 15.Uvigerina proboscidea, 50.variabilis, Bolivina, 32.Textularia, 32.Verneuilina spinulosa, 40.vertebrale, Loxostoma, 37.vertebralis, Bolivina, 37.virgula, Sagrina, 52.Siphogenerina, 52.Siphogenerina (Sagrina), 52.Virgulina, 12.complanata, 13.fijiensis, 14.pauciloculata, 14.schreibersiana, 12.schreibersiana complanata, 13.squammosa, 12.squamosa, 12.subsquammosa, 13.Virgulininae, 12.wHliamsoniana, Bulimina, 8.Buliminoides, 8.o U. S NATIONAL MUSEUM BULLETIN 161. PART 3 PLATE 1 TROPICAL Pacific ForaminiferaFOR explanation of plate see page 61 U S. NATIONAL MUSEUM BULLETIN 161. PART 3 PLATE 2 Tropical Pacific ForaminiferaFOR EXPLANATION OF PLATE SEE PAGE 61 U S. NATIONAL MUSEUM BULLETIN 161 PART 3 PLATE 3 Tropical Pacific ForaminiferaFOR EXPLANATION OF PLATE SEE PAGE 61. U. S. NATIONAL MUSEUM BULLETIN 161, PART 3 PLATE 4 Tropical Pacific Foraminifera.FOR EXPLANATION OF PLATE SEE PAGE 62 U S. NATIONAL MUSEUM BULLETIN 161 PART 3 PLATE 5 Tropical pacific ForaminiferaFOR EXPLANATION OF PLATE SEE PAGE 62 U. S. NATIONAL MUSEUM BULLETIN 161. PART 3 PLATE 6 Tropical Pacific Foraminifera.FOR EXPLANATION OF PLATE SEE PAGE 62. U. S. NATIONAL MUSEUM BULLETIN 161 PART 3 PLATE 7 Tropical Pacific ForaminiferaFOR EXPLANATION OF PLATE SEE PAGE 62. U. S. NATIONAL MUSEUM BULLETIN 161. PART 3 PLATE 8 Tropical pacific Foraminifera.FOR EXPLANATION OF PUATE SEE PAGE 62. U. S. NATIONAL MUSEUM BULLETIN 161. PART 3 PLATE 9 Tropical Pacific Foraminifera.FOR EXPLANATION OF PLATE SEE PAGE 63. U. S. NATtONAL MUSEUM BULLETIN 161. PART 3 PLATE 10 Tropical Pacific Foraminifera.FOR EXPLANATION OF PLATE SEE PAGE 63 U. S. NATIONAL MUSEUM BULLETIN 161. PART 3 PLATE 11 Tropical Pacific ForaminiferaFOR EXPLANATION OF PLATE SEE PAGE 63- U. S. NATIONAL MUSEUM BULLETIN 161. PART 3 PLATE 12 Tropical Pacific Foraminifera.FOR EXPLANATION OF PLATE SEE PAGE 63 U. S NATIONAL MUSEUM BULLETIN 161 PART 3 PLATE 13 Tropical Pacific ForaminiferaFOR EXPLANATION OF PLATE SEE PAGE 64. NATIONAL. MUSEUM BULLETIN 161. PART 3 PLATE 14 Tropical pacific Foraminifera.FOR EXPLANATION OF PLATE SEE PAGE 64. U. S. NATIONAL MUSEUM BULLETIN 161. PART 3 PLATE 15 Tropical Pacific Foraminifera.for explanation of plate see page 64. A ^ SMITHSONIAN INSTITUTION LIBRARIES 3 9088 01421 2450 X\| ?Vs '^\^ t^K\ \