ATOLL RESEARCIl BULI,ETIN NO. 205. THE HOSTS OF THE CORAL-ASSOCIATED INDO WEST-PACIFIC PONTONIINE SEIRIBZPS Issued l,y TIIIC SfiII'I'IISONIAN INSTITIJTION Washillgtol~, D.C., U.S.A. February 1977 vvi,Tcruiiij fema le a i n c!{..;t i n - i i c r o p u r n ho.;t coral , i o:gba:;a, l.i-e t : ' r : ~ ? ~ ~ is not found in any other coral associated pontoniine shrimp, and which suggests that the association may have been accidental. In coral-associated pontoniine shrimps this dactylus is generally robust and simple, except in Fennera, JocaSte and Coralliocaris, in which a basal process is present. 6. Periclimenes diversipes Kemp Restricted Synonymy: Periclimenes (Ancylocaris) diversipes Kemp, 1922:117, 169 (key), 179-184, figs. 36-39 (partim). Hosts. Psamcora togianensis Umbgrove (Bruce, 1972a). Pocillopora damicornis ( L . ) (Bruce, in press, el. Stylophora erythraea von MarenzelLer (Bruce, 1972a). Seriatopora sp. (Bruce, 1971) . Acropora tenuis (Dana) (Bruce, 1972a). Acropora variabilis (Klunzinger) (Bruce, in press, e). Montipora circumvallata (Ehrenberg) (Bruce, 1971). Montipora prolifera Breuggemann Pavona danai (M.-Edw. & Haime) (Bruce, 1972a). Porites nigrescens (~ana) (Bruce, in press, e). Porites iwayamanensis Eguchi (Bruce, 1972a) . Porites sp.nov. cf. andrewsi (Bruce, 1972a). Galaxea clavus (Dana) (Bruce, 1972~). Distribution. - Common in the Indian Ocean: from the Red Sea to Madagascar. Also recorded from the Australian Great Barrier Reef on Acropora sp. (Patton, 1966). Remarks. The least host-specific of the pontoniine coral associates, -- with hosts belonging to nine different genera. 7. Pcriclimencs rnadri'pcrae Bruce Restricted synonymy: Periclimenes madreporae Bruce, 1969:262-263, 264; 1972a:403, 404, 405, 406, 407, 409, 410, 413 (key). - Patton, 1974:221, 223-226 tab.1, 231, 239, 241 fiy.1. Periclimenes (Ilarpilius) inornatus Patton, 1966 : 274-275, 288 tab.2, 291 tab.3, fig.2. - Miyake & Fujino, 1968 400, 402 (key) 413-414, fig.3 g-h, 431 tab.].. Hosts. Pocillopora damicornis (L. 1 , (Patton, 1966). Pocillopora verrucosa (El-lis & Solander) (Patton, 1966). Seriatopora hystrix (Dana), (Patton, 1966). Stylophora mordax (Dana), (Buucc, 1972a) . Stylophora pistillata (Esper.) , (Patton, 1966). Acropora corymbosa (L,am. ) , (Bruce, 1972a). Acropora cuneata (Dana) , (Bruce, 1972a) . Acropora digitifera (Dana), (Bruce, 1972a). Acromra nasuta (Dana), (Bruce, 1972a). Acropora rotumana (Gardiner), (Bruce, 1972a). Turbinaria sp., (Bruce, 1972a). Distribution. NE Australia, and Palau Islands only. Remarks. The only caridean so far found in association with corals of the genus Turbinaria. 8. Periclimenes holthuisi Bruce Kestrictea synonymy: Periclimenes holthuisi Bruce, 1969:258-259. Hosts. Funyia actiniformis Quoy & Gaimard. Distribution. Zanzibar, Seychelle Is., Iiong Kong, New Caledonia, and N.E. Australia. Remarks. This species has generally been found in association with actiniarians, but it has also been found with scyphozoans (Bruce, 1972d). A pair of specimens were collected from the host at a depth of 60 ft. at Krantet Is., Madang, New Guinea, on 13-9-73 by J.E. Randall and R. Steene. 9. Periclinlenes mahei Bruce Restricted synonymy: Periclimenes rnahei Bruce, 1969:263-264; 1971:2, 11. Hosts. Pocillopora elonqata (Dana), host of type material, (Bruce, 1972a). Seriatopora hystrix (Dana), (Bruce, 1971). Acropora corymbosa (Laln. ) , (Bruce, in press, e) . Distribution. Known only from the Seychelle and Comoro Islands and Zanzibar. Remarks. This species appears to occupy the same niche in the western Indian Ocean as P. madreporae does in t.he western Pacific Ocean. 10. Periclimenes difficilis Bruce Periclimenes difficilis Bruce, (in press, e). Hosts. Porites niyrescens Liana. Distribution. Known only from the type locality on Praslin, Seychelle Islands. Remarks. Closely related to P. diversipes, which is the only other species of this genus known to associate with corals of the genus Pori tes . 11. Periclimenes kororensis Bruce Periclimenes kororensis Bruce, (in press, f). Hosts. Fungia actiniformis Quoy & Gaj-mard. - Distribution. Known only from the type locality on Koror, Palau Islands. Remarks. A rather aberrant species 0.f Periclimenes, known only from the incomplete holotype specimen. 12. Periclimenes gonioporae Bruce Periclimenes gonioporae Bruce, (in press, b). Hosts. Goniopora stokesi Milne Edwards & Haime. - Lobophyllia sp. Distribution. Known only from fringing lagoons of southern Kenya. Reniarks. Closely related to P. mallei and P. diversipes, but appears to be specially associated with the genus (;oniopora. 13. Philarius gerlachei (Nobili) Restricted synonymy: Harpilius gerlachei Kemp, 1922:299 (key), 238-239, figs.74-75. Hosts. Acropora corynbsa (Lam.), (Bruce, in press, e). - Acropora cymbicyathus (Brooks) Acropora digi tifera (Dana) , (Bruce, 1972a) Acropora formosa (Dana), (Bruce, 1972a). Acropora humilis (Dana), (Bruce, 1972a). Acropora hyacinthus (Dana), (Bruce, l972a). Acropora nana (Studer) , (Bruce, 1972a). Acropora surculosa (Dana), (Bruce, 1973). Distribution. From the Red Sea, East Africa and Madagascar to the Marshall, Gilbert and Samoan Islands. Remarks. Distinctly less common, in the Acropora hosts, than Jocaste or Coralliocaris species. 14. Philarius imperialis (Kubo) Restricted synonymy: ilarpilius imperialis Kubo, 1940: 1-4, figs. 1.-3. Hosts. Acropora spp., (Bruce, 1972a). -- Distribution. From the Red Sea to Zanzibar, as far east as the Palau and Marshall Islands. Remarks. Generally uncommon; particularly in comparison with Jocaste and Coralliocaris spp. Usually found right at the very innermost bases of the branches of the coral hosts, often on the floor of the grooves between branches. The colour pattern of this species shows the closest resemblance to the illustration given by Dana (1855, pl.37 fig.4) of llarpilius lutescens. This species is apparently found in a variety of Acropora host species, but none have been identified to specific level. 15. Philarius lifuensis (Borradaile) Restricted synonymy: Periclimenes lifucnsis Borradaile, 1898:384; l899:405, pl.36 fig.1. Hosts. Acropora sp. (Bruce, l972a). Distribution. Recorded on1.y from the type locality in the Loyalty Islands. Remarks. The rarest species of this genus. Additional material has - also been recently obtained from Neron Island and Erskine Island, Quecnsland, Australia. 16. liamopontonia corallicola Bruce Restricted synonymy: Namopontonia corallicola Bruce, 1970: 38-48, fi.gs. 1-4. Hosts. Pungia actiniformis Quoy & Gaimard, (Bruce, in press, c). - Goniopora stokesi Milne-Edwards & Haime (Bruce, 1970). Distribution. Known only from Hong Kong and Queensland Australia. Remarks. The colouration of specimens found in association with the Fungia is generally similar to that of the type material on Goniopora, although the specimens are distinctly larger in size. Mortensen (1925, in: Balss, 1.956) refers -to a shrimp from the Kei Islands, which lives among the white tipped tentacles of a Pungia coral, and which is colourless with two white spots on carapace, which almost cert.ain1.y belongs to this species. 1 7 . Iscimopontonia lophos (Barnard) Res t r i c t ed synonymy: P i ~ i l a r i u s Iopi~os Harnard, 1962:242-243, f ig .2 . .Tsciu~opontonia lophos-Bruce, 1966:585-597, f i g s . 1-5. Hosts. Galaxea f a s c i c u l a r i s ( L . ) , (Bruce, 1966). - Dis t r ibu t ion . Coriimon i n the western Indian Ocean; a l s o Si.ngapore; Pulau Perhentian Besar, Malaysia and Queensland, Aust ra l ia . Remarks. This specj.es appareiitly s t r i c t l y associa ted with t h i s s i n g l e co ra l hos t type, where it i s o f t en found with P l a t y c a r i s l a t i r o s t r i s and occas ional ly with Anapontonia denticauda. The species i s remarkab1.e f o r i t s p a r t i c u l a r l y s t rongly b i l a t e r a l l y compressed body form, and it moves a c t i v e l y i n the spaces between the host c o r a l l i t e s . 18. Anapontonia denticauda Bruce Res t r i c t ed synonymy: Anapontonia denticauda Bruce, 1967:8-12, f igs .1-4 . 1,losts. Galaxca f a s c i c i l l a r i s (I,. , (Bruce, 1967) - Dis t r ibu t ion . Known only from Zanzibar; Singapore; Pulau Perhentj-an Besar, Malaysia and Queensland, Aus t ra l i a . liemarks. Of the three species of pontoniine shrimps r e s t r i c t e d t o t h i s hos t , Anapontonia denticauda i s the l e a s t cornillon. 19. Metapontonia fung.iaco.1.a Bruce Res t r i c t ed synonymy: Metapontonia fungiacola Bruce, 1967 :24-30, figs.9-12. Hosts. Pungia spy^. (Brucc, 1967) . - ~alorn-iitra sp . (Bruce, i n p res s , h ) . Iiydnophora in.icroconus Laiii. (Bruce, 1972e) . Goniastrea pec t ina ta (Ehreriberg) (Bruce, 1974b). Distribut.ion. Knowri only from the western Indian Ocean: Kenya, Tanganyika and the Comoro and Seycheile i s l ands . Remarks. One of the smal les t poritoniine shrimp species . The spec ies of Pungia with which t h i s shrimp has been found t o a s soc ia t e have so f a r no t included rungia act.iniformis, which does no t occur i n t h e region where M. funyiacola has been found. 20. P1atyca.r. i~ l a t i r o s t r i s ilo?.thuis R e s t r i c t e d synonymy: I- ' latycaris 1 . a t i r o s t r i s Molthuis, 1.952 :16, 173-176, f i g s . 85-86. i-Iosts. Galaxca f a s c i c u l a r i s (L. ) (Bruce, 1966) . -- Dis t r ibu t ion . Common i n t h e western Indian Ocean; F lores , Indonesia. -- Remarks. ~ h i s pec ies appears t o be s t r i c t l y associa ted with t h i s -- s i n g l e hos t spec ies . I t i s remarkable f o r i t s s t rongly depressed body form. It i s s1.uggish i n behaviour, r e s t i n g i n a head down pos i t ion on the c o r a l l i t e s . 2 1 . Para tyi.>ton siebenrock.i Balss R e s t r i c t e d synonymy: Paratypton siebei;rocki - Bruce, 1969: 1'71-185, f i g s . 1-5, p1..1. a-c. Hosts. Acropora hyacj.nt11us (Dana) (Bruce, 1972) . - Acropora massawensis von Marenzeller (Liruce, i n p res s , e ) . Acropora palmerae Wells (Bruce, 1972a). Acropora squamsa Brook (Bruce, 1972a). Acropora squarrosa (Ehrmberg) (Bruce, 1972a). Acropora v a r i a b i l i s (Klunzj-nger) (Bruce, 197433). Dis t r ibut ion . Recorded from the Red Sea, Kenya, Tanganyika and Zanzibar, the Seychelle I s l a n d s , Marsha11 and Samoan I s l ands and Heron I s l and , Aus t ra l i a . Remarks. This species i s remarkable f o r i t s h a b i t of l i v i n g i n p a i r s i n small c y s t s complete1.y encl.osed by the h o s t ' s corallum with only a few m.i.nute ape r tu res coilnectirig the chainher with the e x t e r i o r . 22. Fcnnera chacei Molthuis Res t r i c t ed synonymy: Fennera chacci I lol thuis , 1.951: 171-178, pl .54 a-p. Bruce, 1965: 80-82, f i g . l ; 1.974h: 195, f ig .4 . Hosts. IJocillopora verrucosa ( E l l i s & Solander) , (Pat ton , 1966). - Pocil lopora eydouxi Milne-Edwards & Haime, (Bruce, 1965). D i s t r ibu t ion . Kenya, Maldive and Seychelle I s l ands and W i l l i s I s l and , o f f NE Aust ra l ia . Remarks. One of the sma l l e s t pontoxiiine shrimps. It may be found on -- t he same hos t co lonies with Harp i l iops i s depressus and H. sp in iyerus . Or ig ina l ly discovered i n t h e e a s t e r n P a c i f i c region on the shores of Mexico, Costa Rica, Panama and Colombia, on Por i t e s . 2 3 . l i a rp i l iu s beaupresi (Audouin) Res t r i c t ed synonymy: Na.rpil.iopsis beauprcsi Borradai le , 191'7: 324, 379, p1.55, f ig .21 . Kenip, 1922: 22%231, f i g s . 67-68. Hosts. Poci l lopora acuta Lamarck, (Bruce, 1972a). -- Pocil lopora damicornis ( L C . ) (Pa t ton , 1966). Poci l lopora danae ( V e r r i l l ) , (Bruce, 1972a) . Poci l lopora elongata (Audouin) , (Bruce, 1972a) . Pocil lopora eydouxi Millie-Edwards & liaime, (Bruce, 1972a). Poci l lopora verrucosa (Ellis & Solander ) , (Pa t ton , 1966). Poci l lopora woodjonesi Vaughail, (Bruce, 1972a) . Seriatopora l iys t r ix (Dana), (Pa~t ton , 1966). Stylophora erytllraea von MarenzelUer, (Bruce, 1972a). Stylophora mordax (Dana), (r3ruce, 1972a). Stylophor palmata (B1ainvill.e) , (Bruce, 197433). Stylophora p i s t i l l a t a (Esper .) , (Bruce, 1972a). Acropora v a r i a b i l i s (IscrvaviL c t d c s c r i p t i t . 12roc.Acad.nat . S c i . Phi l ad . , 1860: 22-48.