THE POLYCH.^TOUS ANNELIDS DREDGED IN 1908 BYME. OWEN BEYANT OFF THE COASTS OF LABRADOR,NEWFOUNDLAND, AND NOVA SCOTIA.
By J. Percy Moore,Of the Zoological Department of the TJiiiversitij of Pennsijlvania, Philadelphia.
Our knowledge of the Polychseta of Labrador is very meager,being based almost entirely upon two imperfect lists published byProf. A. S. Packard in 1863 and 1867, respectively. The second andmore complete list embraces 28 species of Polychasta, the determina-tion of several of which is doubtful, though some of the identifica-tions have been verified by Professor Verrill. It was, of course, notto be expected that the Labrador coast would furnish many noveltiesin this group, but that the fauna would be similar to that of thebetter-known waters adjacent.Beginning with Fabricius, in 1780, the Polychseta fauna of Green-land has had many able students down to our own time, and thisgroup of animals is better known in few regions than in this. Theranges of many species, first made known from the waters of Green-land and northern Europe, have been found to extend to the Ameri-can coast at the region about the Bay of Fundy and the waterssurrounding Nova Scotia. Stimpson, Verrill, and Webster andBenedict have described the rich fauna of the former, and Mcintosh,in a series of papers, has recorded especially the results of the dredg-ings of AMiiteaves in the Gulf of St. Lawrence. Both regions, whileyielding a considerable number of forms peculiar to the Americancoast, have exhibited a facies essentially Arctic.It was to be presumed, therefore, that the Labrador Polychsetawould belong chiefly to Arctic species, with some additions from themore southern fauna. Packard's lists had already furnished a basisfor this expectation, to which the present collection affords welcomeconfirmation. Fortunately, the bulk of the collection comes fromLabrador, where additions to our knowledge were most to be desired.Of the 51 species recorded, 38 are from the coast of Labrador, andonly 7 of these appear in Packard's lists, leaving 31 as probably newto that region. The remaining 13 sj^ecies were dredged mostly offProceedings U. S. National Museum, Vol. 37?No. 1703. 133
134 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.37.Cape Sable, Nova Scotia ; G species have not previously been reportedfrom American waters. In the following list it will be understoodthat where the name of the Province is omitted the locality is inLabrador, Family SILLID^.AUTOLYTUS LONGISETOSUS (CErsted) Malmgren.A single male epitoke taken in the tow^ net off Egg Harbor, August10, agrees closely with the descriptions and figures of this northernspecies given by Oersted, Malmgren, and Verrill. The number ofsegments (30) in the caudal region is, however, greater, but theirtotal length bears about the same proportion to the other regions.There are G setigerous segments in the anterior and 30 in the middleor swimming region. Notocirri of the anterior region bear a largedorsal basal gland, probably represented in Oersted's figure as athickening of this region. Some confusion exists in the Americanrecords of this species. Verrill reports it from Massachusetts Bay.Family PHYLLODOCIDiE.PHYLLODOCE MUCOSA CErsted.Port Manvers, August 21, 30 fathoms, sticky mud; halfway be-tween Cape Mugford and Hebron, August 23, GO fathoms, mud andsand. This species resembles very closely P. pulchella Malmgrenand P. catenula Verrill. From the latter, so common on the NewEngland coast, it differs in the form of the notocirri and especiallyin the greater number and smaller size of the papilla? of the basaldivision of the proboscis. The nuchal papilla, so generally over-looked in members of this genus, is present. The only publishedAmerican Atlantic record is that of Webster and Benedict forEastport. PHYLLODOCE, species.Off Beachy Island, between Flint Island and Cape Mugford,August 22, 80 fathoms, soft mud. A young specimen 18 mm. long;resembles P. jmlchella rather more closely than P. mucosa^ except inthe relative length of the seta appendages.Family POLYNOID^.HARMOTHOE IMBRICATA (Linnaeus) Malmgren.Egg Harbor, August 10, 7 fathoms, mud; Shoal Tickle, southeastof Nain, August 15; 20 miles northeast of Nain, August 20; Koma-toroic Bay, north of Nakoak, August 28, 5 fathoms, rocky; off St.Lawrence Harbor, Placentia Bay, Newfoundland, September 29; St.
NO. 1703. SOME POLYCH^TOUS ANNELIDS?MOORE. 135Pierre Harbor, October 1, 5 fathoms, rock and gravel ; Browns Bank,off Cape Sable, Nova Scotia, October 8, 45 fathoms; 43 miles westby south from Cape Sable, October 8, 110 fathoms, gravel.This widel}^ distributed species appears to be common throughoutthe region represented. The usual marked variations in color, mar-ginal ciliation, and papillation of the elytra occur. Packard reportsthis species as common along the coast of Labrador. It is probablethat he did not fully differentiate this from other species ofPolynoidae. L^NILLA GLABRA Malmgren.Egg Harbor, August 10, 7 fathoms, mud. A single example amongseveral of the last, from which it is distinguishable only upon carefulexamination. Apparently not previously recorded from the Ameri-can coast. EUNOE CERSTEDI Malmgren.Browns Bank, off Cape Sable, Nova Scotia, October 8, 40-45 fath-oms, rock}^ and sandy; 20 miles east of Cape Sable, October 7, 70fathoms, fine sand; about 40 miles west by south from Cape Sable,October 8, 7G fathoms, black gravel. The el3^tral papillae are largeand usually rough, generally conical, but in some cases bifid or eventrifid. On our coast this sjjecies occurs as far south as Crab Ledge,off Chatham, Massachusetts, and is common in Casco Bay, Maine.ANTINOE SARSI Kinberg.Halfway from Cape Mugford to Hebron, August 23, 60 fathoms,mud and sand. Five tj'pical examples like those occurring on thecoasts of northern Europe and Greenland. Known as far south asCasco Bay. GATTYANA CIRROSA (Pallas) Mcintosh.Egg Harbor, August 10, 7 fathoms, mud; Shoal Tickle, southeastof Nain, August 15 ; off Beachy Island, between Flint Island andCape Mugford, August 22, 80 fathoms, soft mud; halfway betweenCape Mugford and Hebron, August 23, 60 fathoms, mud and sand;outside of Hebron, August 25, 60 fathoms, gravel; Browns Bank,off Cape Sable, Nova Scotia, October 8, 40 fathoms, rocky andsandj^Except under date of August 23, when four specimens were taken,single examples only of this species occur in the collections fromeach locality. From G. amondseni in this collection they are readilydistinguished by the broader, more depressed form and by the elytra,which have larger and rougher papilla? and much longer marginalcilia; considerable numbers of cilia, not exhibited in Malmgren 'sfigures, are scattered over the dorsal surface also.
136 PR0CEEDING8 OF THE NATIONAL MUSEUM. vol.37.GATTYANA AMONDSENI (Malmgren) Mcintosh.HalfAva}^ from Cape Mugford to Hebron, August 23, GO fathoms,mud and sand ; off Fish Island, August 25, 75 fathoms, mud ; 1 milenorth of Battle Harbor, September 14, 50 fathoms, fine sand. Thesespecimens are of a nearly uniform pale gray or brownish gray colorand in structural characters agree closely with Malmgren's figures.This and the preceding species are found southward to Province-town, Massachusetts, and Andrews has reported a specimen of G.cirrosa even at Beaufort, North Carolina.EUPOLYNOE ANTICOSTIENSIS Mcintosh.Egg Harbor, Huntington Island, August 8, 7 fathoms, mud; offFish Island, outside of Hebron, August 25, 75 fathoms, mud ; 1 milenorth of Battle Harbor, September 14, 50 fathoms, fine sand.As its name indicates, this very clearlj?^ characterized species wasoriginalh'' described b}^ Mcintosh from the Gulf of St. Lawrence andup to the present has not been recorded elsewhere. A single examplewas taken at each station, and the label accompanying that firstrecorded bears the interesting memorandum " Worm with row ofphosphorescent spots on each side," thus adding this species to thelist of known luciferous Polynoida?.The dark spot on the elytra mentioned by Mcintosh lies at theanterior side of the isthmus of an oo -shaped, unpigmented spotbounded by the curved brown bands, which, however, may not fullyinclose it, but leave it continuous antero-laterally with the colorlesscovered portion of the el^^tra. Each segment is marked on the dorsumby a narrow, transverse, greenish stripe and often by a pair of smallbroAvn spots.The proboscis protruded on one specimen measures 5.6 mm. long,3 mm. wide, and 3.5 mm. deep, with 9 dorsal and 9 ventral orificialpapillae and 4 short, stout, pale-brown jaws of the usual form, butshorter than in most related species.LEPIDONOTUS SQUAMATUS (Linnaeus) Kinberg.Browns Bank, off Cape Sable, Nova Scotia, October 8, 140 fathoms,rocky and sandy.Curiously enough, this species, usually so plentiful and ubiquitouson all northern coasts, is represented by a single example onl}^, aspecimen about 25 mm. long with bright brick-red elytral papillse.Packard reports this species as common all along the Labradorcoast from the littoral zone to 20 fathoms. It ranges at least toVirginia, and probably beyond.
INO. 1703. SOME P0LYCHJET0U8 ANNELIDS?MOORE. 137Family APHRODITID^.L.ffiTMONICE FILICORNIS Kinberg.Off Sable Island, Nova Scotia, 75 miles W.N.W., October 5, 75fathoms, fine sand. A single fine specimen, which, however, was notsufficiently closely studied to determine if it is really distinct fromL. armata Verrill, of the New England coast and Gulf Streamslope, which many European students of the Polychaeta considerto be identical. Ehlers considers L, armata to be a synonjnii ofL. kinbergi Baird, and records the species from the West Indianregion. Mcintosh reports L. flicornis from the Gulf of St. Lawrenceand Verrill L. armata from the Gulf of Maine, Georges Banks, etc.Family NEPHTHYDID^.NEPHTHYS C^CA (Fabricius) CErsted.Egg Harbor, August 10, 7 fathoms, mud ; Shoal Tickle, near Nain,August 15; Port Manvers, August 21, 30 fathoms, sticky mud; offBeachy Island, between Flint Island and Cape Mugford, August 22,80 fathoms, soft mud ; half way between Cape Mugford and Hebron,August 23, GO fathoms, mud and sand; 1 mile north of Battle Har-bor, September 14, 50 fathoms, fine sand.Typical examples of this circumboreal species occur in considerablenumbers on both muddy and sandy bottoms. Those from the first-mentioned habitat are chiefly of small size and are more or less deeplypigmented. Those taken on sandy bottoms are colorless, like therepresentatives of the species in southern New England, which like-wise occur on sandy or stony bottoms exclusively. Packard recordsthis species from Labrador, and it is common at Eastport, as reportedby both Ehlers and Webster and Benedict.NEPHTHYS INCISA Malmgren.East of Cape Sable 55 miles, October 6, 85 fathoms, mud. Severalspecimens of this species, so abundant on the soft, muddy bottomsof Buzzards Bay, Massachusetts, where it was formerly erroneouslyidentified with N . ingens Stimpson. It is common in northernEurope also. From TV. cmca it is readily distinguished by its muchshorter, prismatic body and deeply incised parapodia, as well asdifferences in papillation of the proboscis and characters of thesetigerous rami and setae.Family NEREIDS.NEREIS PELAGICA Linnaeus.Cock Capelin, Gready Harbor, August 8, 20 miles E.S.E. of CapeSable, Nova Scotia, October 7, 70 fathoms, fine sand ; 14 miles south
138 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 37.of Cape Sable, October 7, 45 fathoms, rocky ; Browns Bank, off CapeSable, October 8, 40-45 fathoms, rock}' and sandy.A single specimen from the Labrador >^tation; common off CapeSable. Reported by Packard. Circumboreal and south to Beau-fort, North Carolina.Family LUMBRINERID^.LUMBRINERIS FRAGILIS (Muller).Port Manvers, August 21, 30 fathoms, sticky mud. Two fragmentsof anterior ends of a large Luinhrineris are referred, with some doubt,to this species. They are 4-5 mm. in diameter, with a faint, narrowbrown band on the dorsum of each segment. The form of the head,parapodia, etc., agree with this species. The jaws closely resembleMcintosh's figure, have five obscure teeth on the large right maxilla(II) and four, more distinct ones, on the left. Two hooded crochetsappear in the parajoodia at XX and two acute limbate setse remainin the middle of the bundle at LXXV, but have disappeared at XCV.Intermediate forms of sette occur. Common and generally distrib-uted north of Cape Cod, as well as in European Avaters, but raresouth of Cape Cod. LUMBRINERIS HEBES Verrill.Shoal Tickle, southeast of Nain, August 15; off Beacliy Island,between Flint Island and Cape Mugford, August 22, 80 fathoms,soft mud.Two incomplete examples, which agree with Verrill's description inevery respect, except that a single acute limbate seta persists in thebundles as far as XL or L, while in examples of this species fromsoutheastern Massachusetts limbate seta? seldom occur beyond somiteXX to XXIV.This species, common throughout the length of the New Englandcoast, has not before been reported north of Eastport, where it wastaken by Webster and Benedict.Family ONUPHID^.NOTHRIA CONCHYLEGA (Sars) Malmgren.Egg Harbor, August 10, 7 fathoms, mud; outside of Hebron, Au-gust 25, GO fathoms, gravel; same, August 26, 80 fathoms; off St.Lawrence Harbor, Placentia Ba}', Newfoundland, September 29;Browns Bank, off Cape Sable, Nova Scotia, October 8, 45 fathoms;same, 110 fathoms, gravel. From one to four, mostly richly coloredexamples, at each station. On muddy bottoms the tubes are coveredwith fragments of shells; on gravelly bottoms with flat bits of rock.This species is well known throughout the northern North Atlanticand occurs as far south as Chatham, Massachusetts.
NO. 1703. SOME POLYCff^TOUS ANNELIDS?MOORE. 139Family ARICIID^.SCOLOPLOS ARMIGER (Muller) Blainville.Off Beacliy Island, between Flint Island and Cape Mugford,August 22, 80 fathoms, soft mud ; 1 mile north of Battle Harbor,September 14, 50 fathoms, fine sand.Small incomplete sj^ecimens, representing the anterior end only,from these stations agree very closely with the published descriptionsand figures of this species. They are much contracted and the an-terior branchia3 are very minute, but appear to begin on somite XIIIin all cases. Several of the anterior segments are lightly banded onthe dorsum with brown ; S. acutuin Verrill is very closely related, ifnot, indeed, identical, with this northern European species and occursin southern New England. Webster and Benedict regard it as thesame as S. armiger which they report from Eastport.Family CIRRATULID^.CIRRATULUS CIRRATUS (Muller) Malmgren.Shoal Tickle, southeast of Nain, August 15. A single much con-tracted specimen about 30 mm. long and filled with eggs. There areseven or eight conspicuous eye-spots on each side of the prostomium,arranged in a pair of slightly curved oblique lines, converging, butnot meeting, in front. This is another of the species reported byPackard. CH.ffiTOZONE SETOSA Malmgren.Off Beachy Island, between Flint Island and Cape Mugford,August 22, 80 fathoms, soft mud.Four small imjDerfect specimens 8-15 mm. long agree with Malm-gren's description and figures except that they possess a pair oflong, stout tentacular cirri (sometimes called palpi) and a largernumber of branchial filaments (notocirri). The posterior spines arealso more slender and elongated than in the adults. In these re-spects they agree exactly with examples found at Eastport by Web-ster and Benedict. The tentacular cirri of many Cirratulidse areknown to be extremeh^ caducous, and this, together with the fact thatmany become epitokous (recently discovered by Caullery), has causedmuch confusion and unnecessary multiplication of genera.Family AMPHAEETID.^.SABELLIDES BOREALIS Sars.Halfway between Cape Mugford and Hebron, August 23, 60fathoms, mud and sand.A fine specimen, 60 mm. long and more than 3 mm. in maximumwidth ; segments 29, 14 setigerous. Notocirri begin on XIX and ex-
140 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.37.tend to XXIX, inclusive. Caudal cirri 1.5 mm. long. Branchia3shorter than in Malmgren's figure and his figures of uncini imperfectin that they fail to show the double series of marginal teeth ; thoseexamined have 4 teeth in each series. Tentacles ciliated. Thetube is moderately firm with collapsable ends, formed of fine silt, andmeasures 170 nun. long by 5 mm. in diameter. Not previously re-i^orted from the American coast.SAMYTHA SEXCIRRATA Sars.Port Manvers, August 21, 30 fathoms, sticky mud.Two specimens (the largest 22 mm. long, found in a soft mucoidtube) appear to belong to this species, but exhibit several peculiari-ties. There are only 16 setigerous segments instead of the typical17 ; this count is reliable for one specimen, but the other is maceratedabout the middle, and it is possible that a seventeenth ma}^ bear setse.There are 12 post-setigerous segments, and the pygidium is 4-lobed,with a pair of ventral cirri. One has three pairs of branchiae ar-ranged typically in a transverse rank on a ridge. On the other therank is crowded and irregular and on the right side an additionalgill?making 7 in all?quite similar to the others arises behind them.The uncini have the marginal teeth in two alternating series of fiveor six each. Verrill reports this species from several localities on thenorthern New England coast.Family AMPHICTENID^.PECTINARIA (CISTENIDES) HYPERBOREA (Malmgren).Egg Harbor, August 10, 7 fathoms, mud; off Beachy Island, be-tween Flint Island and Cape Mugford, August 22, 80 fathoms, softmud ; halfway between Cape Mugford and Hebron, August 23, 60fathoms, mud and sand. The tubes measure from 9 to 72 mm. long,the largest being mm. in diameter at the mouth. The worms have12 or rarely 13 pairs of palea^, and the uncini sometimes have 4 in-stead of 3 large hooks. Though common in Greenland waters, thisspecies is new to the American coast, though it seems probable thatsome of the records of the closely similar P. granvlata may refer tothis species. P. granulata is reported by Packard as common inLabrador, and is recorded from all parts of the Xew England coast,especially northward.Family TEKEBELLID^.AMPHITRITE INTERMEDIA Malmgren.About 40 miles west b}^ south from Cape Sable, Nova Scotia, Octo-ber 8, 76 fathoms, black gravel, k. single specimen G5 mm. long.Verrill has recorded this species from the northern New Englandcoast.
NO. 1703. 80ME POLTCHJETOUS ANNELIDS?MOORE. 141
LE.ffiNA ABRANCHIATA Malmgren.Egg Harbor, August 10, 7 fathoms, mud. An incomplete speci-men in a portion of tube constructed of small shell fragments. Thereare 11 fascicles of seta} on one side, 10 on the other. The only recordof this species on our coasts is the doubtful one in Verrill's check list.AXIONICE FLEXUOSA (Grube) Malmgren.Nain, August 18, 7 fathoms, mud ; off Beachy Island, between FlintIsland and Cape Mugford, 80 fathoms, soft mud; southeast fromBurin, Placentia Bay, Newfoundland, September 28, 110 fathoms,rocks and pebbles.A single specimen of the worm was taken at the station last re-corded. At the other stations the characteristic, hard, sandy, regu-larly flexuous tubes were noted. Another addition to the Americanfauna. NICOLEA ZOSTERICOLA (CErsted) Malmgren.Egg Harbor, August 10, 7 fathoms, mud. A female, barely 18 mm.long, and having 40 segments, 15 of which are setigerous; containsnumerous large eggs. A still smaller male has the sexual cirri alreadydeveloped. The female has two pairs, the male one pair and anunpaired one, of small little-branched gills. It is possible that thesemay be small specimens of N. arctica, from which species they differonly in their smaller size and slightly developed gills. Webster andBenedict give the onh^ previous record for the American coast, theirspecimens having been taken at Eastport.THELEPUS CINCINNATUS (Fabricius) Leuckart.Near Egg Harbor, August 10, 20 fathoms, rocks; Shoal Tickle,near Nain, August 15; outside Hebron, August -26, 80 fathoms,gravelly; 14 miles south of Cape Sable, Nova Scotia, October 7, 45fathoms, rocky ; Browns Bank, off Cape Sable, October 8, 40-45 fath-oms, rocky and sandy ; about 40 miles west by south from Cape Sable,October 8, 7G fathoms, black gravel ; about 43 miles west by southfrom Cape Sable, October 8, 110 fathoms, gravel.This well-known and widely distributed species, originally de-scribed from Greenland waters, and known on our coasts southwardas far as the banks off Marthas Vineyard and Block Island, occursgenerally in the region covered by these explorations. The character-istic tubes are frequently dredged, especially on the gravelly bottomsoff Cape Sable. The muddy bottoms off much of the Labrador coastare unfavorable to its presence.
142 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.37.TEREBELLIDES STRCEMI Sars.Egg Harbor, August 10, T fathoms, mud ; halfway between CapeMugford and Hebron, August 23, GO fathoms, mud and sand ; 55 mileseast of Cape Sable, Nova Scotia, October 6, 85 fathoms, mud.A species of wide distribution and frequent occurrence, known onour coast as far south as Vineyard Sound, where it was discovered byVerrill. Family MALDANID^.LUMBRICLYMENE, species?
Oft' Cape Sable, Nova Scotia, 14 miles south, October 4, 45 fathoms,rocky. The anterior ten segments with a color j^attern like Arwids-sons figure of L. cylindricauda but with differently shaped crochets.PRAXILLELLA GRACILIS (Sars) Verrill.Egg Harbor, August 8, 7 fathoms, mud. The head and anteriorten setigerous segments of a large individual TO mm. long and 5 mm.in diameter. Except that the number of uncini in anterior setigeroussegments (II-IV) is greater, it agrees fully with descriptions ofspecimens from northern Europe.PRAXILLELLA PR^TERMISSA (Malmgren) Verrill.Egg Harbor, August 10, 7 fathoms, mud. Represented by a caudalend 1.3 nun. in diameter. The caudal funnel bears 15 very regular,bluntly pointed papillae as long as one-third of the diameter of thefunnel and an umpaired neural filament nearly twice as long. Boththis and the preceding species have been reported by Verrill andothers from the northern New England coast.PRAXILLELLA, species?One mile north of Battle Harbor, September 14, 50 fathoms, finesand. A much contracted caudal end consisting of four shortachsetous segments and an anal funnel exactly like Arwidssons P.a-fjinvs (Taf. fig. 147), but with 3G short, blunt, regular marginalpapillae, which become somewhat shorter and more crowded dorsally
;
the unpaired ventral one in the neural line about twice as long as theothers. Crochets unknown.MALDANE SARSI Malmgren.Shoal Tickle, near Nain, August 15; Port Manvers, August 21,30 fathoms, sticky mud. From the first recorded station comes oneand from the second twenty or more fragments of anterior ends,including the head, and from one to ten setigerous segments. The
NO. 1703. SOME POLYCH.l^TOUS ANNELIDS?MOORE. 143diameter is from 0.8 to 3.2 mm. The only obvious feature in whichthese specimens differ from typical examples of the species is theelevation into a ridge of the transverse glandular bow on the dorsumbehind the fifth fascicles of seta?. An abundant circumboreal specieswell known from the coast of northern New England.Family CHLORH.^MID.^.BRADA GRANULATA Malmgren.Halfway between Caj^e Mugford and Hebron, August 23, GO fath-oms, mud and gravel ; off Fish Island, outside of Hebron, August 25,75 fathoms, mud ; outside of Hebron, xVugust 26, 80 fathoms, gravel.These are stout grub-shaped worms measuring 40^5 mm. longand 9-13 mm. in diameter, with 21-23 setigerous segments. Thereis little doubt that they belong to Malmgrens species, but it seemsprobable that this is identical with B. suhlevis Stimpson describedfrom the Bay of Fundy in 1853, as has been suggested already byWebster and Benedict.TROPHONIA ASPERA Stimpson.Egg Harbor, August 10, 7 fathoms, mud ; Nain, August 18, 7 fath-oms, mud; Port Manvers, August 21, 30 fathoms, sticky mud; offBeachy Island, between Flint Island and Cape Mugford, August 22,80 fathoms, soft mud; outside of Hebron Harbor, August 25, 60fathoms, gravel. One specimen from each station; a complete onehas 32 segments and a length of 45 mm. A tuft of seven rather thicktentacles, having a length equal to one-half the body diameter, isexposed on one side. The setae of the first three segments are verylong, and the first five tufts of notopodials are directed forward.This is one of the species reported by Packard.FLABELLIGERA AFFINUS Sars.Egg Harbor, August 10, 7 fathoms, mud ; outside Hebron, August26, 80 fathoms, gravelly; 55 miles east of Cape Sable, Nova Scotia,October 6, 85 fathoms, mud. One specimen from each station, 22 to60 mm. long. This species and the next are European forms wellknown on our coast as far south as Casco Bay.Family SCALIBREGMID^.SCALIBREGMA INFLATUM Rathke.Off Cape Sable, Nova Scotia, 55 miles east, October 6, 85 fathoms,mud. One much macerated specimen.L
144 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 37.Family STERNASPID.^.STERNASPIS FOSSOR Stimpson.Off Cape Sable, Nova Scotia, 55 fathoms east, September (), 85fathoms, mud.These siDecimens are identical with some collected near the typelocality by Dr. Harold S. Colton. They differ greatly from thesouthern New England species which has long gone under Stimpson'sname, but which I am unable to distinguish from Mediterraneanexamples of S. scutata (Ranzani). S. fossor has seven segmentsbetween the genital pores and the anterior margin of the caudalshields, which have obscure ridges and a bright ferruginous color.The cuticle is more or less densely pilose, especially behind the genitalpores, where most of the cutaneous papillae become aggregated in aregular row of low tufts on many of the segments; above the regionof the caudal shield they become longer and almost filamentous.Southern specimens, in striking contrast, have eight segments betweenthe genital pores and the caudal shield and the cuticle is nearlysmooth. The ranges of these two species on our coasts can not nowbe stated. Family ERIOGRAPHID.E.MYXICOLA STEENSTRUPI Kroyer.Browns Bank, off Cape Sable, Nova Scotia, October 8, 40 fathoms.A young specimen having a total length of 22 mm. and a maximumwidth of nearh^ 2 mm. Perfectly colorless except for segmental pairsof conspicuous lateral, small, nearly black eye-spots, arranged in asomewhat irregular series on each side. Common at Eastport andreported by Verrill from Casco Bay, Maine.Family SABELLID^.SABELLA CRASSICORNIS Sars.Off Sable Island, Nova Scotia, 75 miles W. N. W., October 5, 75fathoms, fine sand. A single specimen 24 mm. long with 14 pairsof branchiae 8 mm. long marked with five or six regular pale brownbands, at each of which, except the first, a pair of large dark-browneye-spots is borne on the back of each rachis. The rather stiff tubeis strengthened with fine sand grains. Not previously reported fromour coasts, though the related S. pavonica is well known in NewEngland waters. CHONE INFUNDIBULIFORMIS Kroyer.Same station as last. Two specimens.
INO. 1703. SOME POLYCH.IL'TOVS ANNELIDS?3I00RE. 145CHONE, species?.Near Egg Harbor, August 10, 20 fathoms, rocks. Portion ofcaudal end of a specimen 3 mm. in diameter. The abdominal uncinihave much longer beaks than those of the specimens of C. infundi-Jjuliformis^ longer, indeed, than figured for any of the North Atlanticspecies. They resemble those of C. duneri Malmgren rather moreclosely. EUCHONE TUBERCULOSA (Kroyer) Malmgren.Off Beachy Island, between Flint Island and Cape Mugford, Au-gust 22, 80 fathoms, soft mud. Two fine specimens. One is 31 mm.long, the gills being 8.5 mm., the other slightly longer. Both arecolorless and both have the left ventral plate of the first abdominalsegment more than twice as large as the right and extending in frontof it. Tubes of fine silt, terete, 103 mm. long and 2 mm. in diameter.EUCHONE RUBROCINCTA (Sars) Malmgren.Egg Harbor, August 10, T fathoms, mud. A small specimen 12mm. long. This is an addition to the North American fauna, but thetwo preceding species have been taken by Verrill in northern NewEngland. POTAMILLA NEGLECTA (Sars) Malmgren.Off Cape Sable, Nova Scotia, 14 miles south, 45 fathoms, rocky;76 miles WNW. from Sable Island, 75 fathoms, fine sand; BrownsBank, off Cape Sable, October 8, 40 fathoms, rocky and sandy.The four specimens are larger than is usual for the species in north-ern European waters, having a thoracic width of 2.0^ mm. Thegills, of which there are 15 or 16 pairs, are either colorless or moreor less diffusely colored with pale chestnut or orange brown. Re-ported by Webster and Benedict from Eastport and by Verrill fromGeorges Banks. Family SERPULIDiE.FILOGRANA FILOGRANA Berkeley.Browns Bank, off Cape Sable, Nova Scotia, October 8, a smallgroup of tubes of this species, which occurs southward to MarthasVineyard. SPIRORBIS SPIRILLUM Linnaeus.Egg Harbor, August 10, 7 fathoms, fine mud; Shoal Tickle, 20miles southeast of Nain, 25 fathoms, gravel ; outside of Hebron, Au-gust 25, 60 fathoms, gravel; Browns Bank, off Cape Sable, NovaScotia, October 8, 40 fathoms, rocky and sandy. Most of the speci-mens are of the ascending (lucidus) form attached to bryozoans andProc.N.M.vol,37?09 10
146 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.37.hydroids, but a few of the typical discoid form occur on Laminaria,etc. Reported by Packard (not as spirillum, but as S. porrecta, testeVerrill). SPIKORBIS CANCELLATUS (Fabricius) Morch.Egg Harbor, August 10, T fathoms, mud. One thick-walled, dex-tral tube showing carinse, three teeth at the aperture, and series ofbasal pits exactly like Levinsen's figure 18. xVlso in Packard's list.SPIRORBIS VALIDUS Verrill.Egg Harbor, August 10, 7 fathoms, mud ; Shoal Tickle, August 15,25 fathoms, gravel; Komactoroic Bay, north of Nakoak, 5 fathoms,rocky. Several tubes attached to pebbles, a broken shell of Siphoislandica, and to bryozoans. Both discoid and ascending forms occur,and a few small ones may possibly be S, tubcEformis. Previouslyknown from Greenland, Grand Banks, etc.