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Description of new species of Muricidae (Gastropoda) from New Caledonia, the Philippine Islands, the northeast Atlantic, and West Africa PDF

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Preview Description of new species of Muricidae (Gastropoda) from New Caledonia, the Philippine Islands, the northeast Atlantic, and West Africa

HOUART NewspeciesofMuricidae APEX 11(2); 59-75, 20juin 1996 Description of new species of Muricidae (Gastropoda) from New Caledonia, the Philippine Islands, the Northeast Atlantic, and West Africa Roland HOUART Research Associate, Institut Royal des Sciences Naturelles de Belgique, Rue Vautier, 29, 1000 Bruxelles KEYWORDS: Gastropoda, Muricidae, new species. ABSTRACT. Five new species of Muricidae are described: Poîrieria (Actinotrophon) fragilis from the New Caledonia région and Western Australia, Dennomurex (Takia) gofasi from the Northeast Atlantic, Attiliosa nithae from the Philippine Islands, Ocenebra (Ocenebra) chavesi from the Azores, and Pterotyphis ryalli from Ghana. Poirieha (Actinotrophon) actinophorus (Dali, 1889) is reported for the first time from the Northeast Atlantic. INTRODUCTION Abbreviations IRSNB: InstitutRoyal des Sciences Naturelles Identification of material obtained from de Belgique, Bru.xelles, Belgium. récent expéditions, new dredging methods, and MNHN: Muséum National d'Histoire Naturelle, unflagging attempts for a better understanding Paris, France. of supraspecific classification hâve led to the SMNH: Swedish Muséum ofNatural History. discovery of new geographical distribution for Stockholm, Sweden. many species and to the description of USNM: National Muséum ofNatural History, numerous new taxa in the family Muricidae. Washington, D.C., USA. More than 380 species hâve been named since DE: Drague épibenthique (Epibenthic Sledge) 1973 (HOUART, 1994). DW: Drague Waren (Waren Dredge). Five new species belonging to four différent CP: Chalut à perche (Beam Trawl). subfamilies are described hère. They originate dd: enipty shells. from différent sources. Poirieria Iv.: live-taken specimen(s). (Actinotrophon) fragilis was coUected during Musorstom and Bathus cruises in the New Caledonia région, organized by ORSTOM and SYSTEMATICS Muséum national d'Histoire Naturelle, Paris using the ORSTOM ship "Alis"; Dernwmurex Family MURICIDAE Rafinesque, 1815 (Takia) gofasi was collected during the Subfamily MURICINAE Rafinesque, 1815 Seamount 2 expédition, also organized by Genus Poirieria Jousseaume, 1880 MNHN, which visited the Meteor Group Subgenus/4c^/>7o/'ro/;/7o« Dali, 1902 seamounts in the Northeast Atlantic, using IFREMER ship "Le Suroît" with fimding of Type species by monotypy: Trophon Centre National de la Recherche Scientifique; actinophorusDzW, 1889 Attiliosa ruthae is a species from the Philippine Islands, the source of numerous, recently described new species; Ocenebra (O.) chavesi Poirieria (Actinotrophon) actinophorus was collected some one hundred years ago in (Dali, 1889) the the Azores; Pterotyphis ryalli from Ghana, Figs 10-11 West Africa, is a small and apparently rare Boreotrophon actinophorus Dali, 1889: 206, pi. species, few spécimens hâve been collected 15,fig. 2. since its discovery in 1977. It was confused with P pinnatus (Broderip, 1833) by D'Attilio & Type locality: off Santa Cruz (St Croix, Virgin Hertz(1989). Islands). 248 fms (454 m). 59 APEX 11(2) 59-75. 20juin 19% Ne\v speciesol'Muricjdae HOUART Material e\amined Description Seamount 2. Great Mcteor Bank, stn DE Shell délicate, up to 28 mm in length D14W0, .10°l)l 10' N-2S°27 70" W, M)ii m. 1 dd, stn (Austraiian spécimen, coll R. Houart) Spire 143, 30°09 9()' N-28°18 10' W, 330 m, 2 high. acutely conical with 15 protoconch dd. stn CP 144. 30°09 90' N-28°29 04' W, 335 whorls and 6 or 7 sharply angulate teleoconch DW m. 1 dd. stn 145, 30°11 40' N-28°28 50' W. whorls Protoconch whorls rounded. smooth, DW 470 m. 1 dd. stn 152. 30°02 00' N- glossy, tcriiunal \ari\ crodcd, strongly curved, 28°22 10' W. 470 m. 1 Iv,. 12 dd (8 juvéniles); typical ofPoineria. Suture impressed. First and stn DE 157, 29°56 20' N-28°31 80' W. 290 m. 1 second teleoconch whorls with 6 or 7 lamcllate DW dd, stn 172. 30°05 10' N-28°41 50' W. 455 \ariccs. 7 or 8 varices from tlurd to last DW m. 1 dd, Hyèrcs Bank, stn 184, 31°24.40' teleoconch whorls. Varices produced into long, ND-W28°52,30' W. 705 m. 1 Iv . Ining Bank, stn sharp, flattened, open shoulder spines, 218. 31°52 30' N-28°03.60' W. 4X0 m. 2 incrcasing gradually in length on ne.xt whorls. DW Iv. stn 219. 32°01.00' N-27°53.30' W. 760 Aperture ovate, columellar lip rim entirely DW m. 2 Iv; stn 205. 32°01.10' N-27°57.20' W. adhèrent Anal notch indistinct Outer lip thin. DW 348 m, 1 Iv; stn 231. 32°01.50' N- smooth within. Siphonal canal niodcralcly long, 27°54.50' W, 745 m, 6 Iv, 6 dd (ail MNHN) open. wcakly bent abapcrturally. 2-4 previous Remarks canals rctaincd. Milky white. Radula (Fig 27) with broad, sickle shapcd /' actiniphonis was rep>orted ali\c. froni latéral teeth. Rachidian with long central and différent localities in the Caribbean Sea. and off Bra/il. in dcpth from 256 to 774 m (DALL. latéral cusps. and short latéral denticles. similar to tliat of species of Poirieria sensu stricto 1889. Bli.LIS, 1964. Bavkr, 1971. PaULMIER. (M.ARS11A1.1.& Hou.^RT. 1995). 1994). The spécimens collected in the Northeast Opcrculum (Fig. 28) ovate-elongate, with Atlantic were dredged. alive, front 290 to 760 m terminal nucleus. depth. The largest spécimen is 14.8 mm in Rcniarks. length. with 6 leleoconch whorls Tlie This is the first record of a species of illustrated spécimen (Fig. 12) is 13.5 iniii in Poirieria (Actinotrophon) in the western Pacific, length, with 5,5 teleoconch whorls. and the second known species. Poirieria (Actinotrophon) fragilis n.sp. is similar to P. (A.) octinophorus (Dali, 1889) from the Poirieria (Actinotrophon)fragilis n.sp. Caribbean and the Northeast Atlantic (Figs 10- Figs 1-2. 5-9, 27-28 11), but the teleoconch whorls of P. actinophorus are smoother and higher with Type material examined New Caledonia: Musorstom 6, stn DW afenwdcrmoarxiealelloanmgealtlea.e,antdhetaheperstiuprheoniaslncaarnraolweirs 483. 21°20' S-167°48' E, 600 m, Bouchei and broader. Richer de Forges. 23 Februar>' 1989, holotype MNHN (Iv). Paratypes: Biocal, stn CP 75. Etymology 22°19' S-I67°23' Ê. 825-860 m. Bouchet. Named for the delicacy and fragility of the & Métivier Richer de Forges. 04 September shell. 1985. 1 MNHN (dd); Bathus 1. stn CP 698. 20°34' S-164°57' E. 491-533 m. Bouchet & Richer de Forges. 17 March 1993. 3 MNHN; stn Dermomurex (Takia) gofasi n.sp. MCPNH7N0,2. B2a0t°h35u's S4-.16s5t°n35'CPE.94589.1-6206°033m'. S-1 Figs 3-4. 13-14.29-30 164°57' E, 533-610 m, Métivier & Richer de Type material examined NFoMrgeLs1,85107/ATu1g3u6s1t;1199co4l.l.1RN.MHoNuaZrtM;2972M4N7H7N.; 1 SEANMorOthUeNasTt 2, AsttlnantDicW, 182H,y'èr3ers23.20B'anNk,- 28°53.50' W, 480 m, Gofas, Métivier, Warén Other material examined coll.. 16 January 1993, holotype (Iv.) and 3 (deptNhorutnhknoWwens)t, coofl!PoRr.tHoHuaerdtl.an(d1,dd)A.ustralia sptanraDtyWpes18M8,NH31N°.30.100p'arNa-t2y8p°e59c.o5ll0.' RW., H3o1u0armt,; MNHN Distribution 17 January 1993, 1 paratype (dd); DW New Caledonia and North West of Port Irving Bank, stn 205, 32°01.10' N- Hedland, Australia; live collected in 610 m 27°57.20' W, 348 m. 25 January 1993, 1 MNHN (New Caledonia). paratype (dd). 60 HOUART NewspeciesofMuricidae APEX 11(2): 59-75, 20juin 1996 Distribution Northeast Atlantic, from 31°23.20' N, W 28°53.50' to 32°01.10' N, 27°57.20' W, in Genusy4»///o5:(7 Emerson, 1968 310-480 m. Type species by original désignation: Description Coralliophila incompta Berry, 1960 mm Shell up to 18.75 in length at maturit>'. lightly built. Spire high, with 1.5-1.75 Attiliosa ruthae n.sp. protoconch whorls and 6 broad, convex, weakly Figs 15.31-32 shouldered teleoconch whorls. Suture Type material examincd impressed. First teleoconch whorl with 6 high, Holotype MNHN, and 1 paratype coll. R. strong, rounded varices, 7 on second and third, Houart, Cebu, Philippine Islands (Iv). 6 or 7 on fourth, 6 on fifth and last whorls. Spiral sculpture, when intritacalx removed, of Distribution primary and secondary cords, and weak threads Only known from the type locality, Cebu, (Fig. 30). Aperture broad, roundly-ovate. Philippines, depth uiiknown. Columellar lip flaring, smooth, rim partially Description erect, adhèrent at adapical extreniity. Anal Shell up to 27.5 mm in length at maturity notch shallow, broad. Outer lip smooth, with 5 (holotype), heavy, weakly spinose. Spire high, weak, low denticles within. acute, with 1.25 - 1.50 protoconch whorls, and Siphonal canal short, narrow, straight, up to 7 distinctly shouldered, teleoconch whorls. open. Suture adpressed. Protoconch small, whorls Greyish-white, coveredby a thick, relatively rounded, smooth. smooth, ivory-white or light tan intritacal.x (Fig. Axial sculpture of teleoconch whorls 29). Aperture glossy white. consisting ofhigh, narrow, spinose varices, each Operculum and radula unknown. with one short, acute, adapically recurved Remarks. shoulder spine. Last whorl with webbed varices The subgenus Takia is actually known from and relatively shorter shoulder spines. Spiral five Récent species: Dermomwex (Takia) sculpture of low, weak, nearly indistinct, afhcanus Vokes, 1978, from South Africa. D. smooth. primary and secondarv' cords. (T.) bobyini (Kosuge, 1984). from the Philippnie Aperture broad, roundly-ovate. Columellar Islands, D. (T.) infrons Vokes, 1974, from Japan lip flaring. smooth, with 3 strong. small knobs and South Africa, D. (T.) myrakeenae (Emerson abapically. Rim partially erect. Anal notch «fe D'Attilio, 1970), from Mexico, Eastern indistinct. Outer lip crenulate, with 8 weak Pacific, and D. (T.) wareni Houart, 1990, from denticles within. Siphonal canal short, narrow, New Caledonia. In addition to that, there are strongly abaperturally recurved, open. several fossil forms in the Western Atlantic Light tan with darker coloured shoulder (Vokes. 1992), but they are rather différent spines on 4 last whorls (holotype), or bluish from D. gofasî n.sp. and do not need to be white with milk>' white varices and aperture compared hère. (paratype). This is the first record of a living Tokia Operculumand radula unknown. species in the Atlantic Océan. Such a record Rcmarks was nicely predicted by Vokes (1992:80) who Attiliosa ruthae n.sp. difl'ers from A. noted: "At this time there are no known species nochilijèra (Sowerby. 1841) (Fig. 16) and A. ofTakia living in the Atlantic Océan - but given caledonica (Jousseaume. 1881) (Fig. 17) in the rate of discover>' of new species of having narrower varices, shorter, sharper, more Dermomurex in the Caribbean of late, one may adapically recurved shoulder spines, and yet appear"... fimbriate instead of spinose varices on the last Etymology whorl. Named after Serge Gofas (MNHN), on There are very few morphological board ofR.V "Suroît", during the SEAMOUNT différences in the shells of the numerous 2 expédition. spécimens of A. nodulifera that I examined throughout the years, and none of them had fimbriate varices and/or short, adapically pointed shoulder spines. Although fewer spécimens of.4. caledonica were examined, ail of thcni also lack thèse particular features. The 61 APF.X 11(2) S9-7S. 20juin 19% New specieso(Muncidae HOUART genus was reviewed by Vokes & D'AniLio currently refered to Fovartia (Muricopsinae) (1982). The shell morphology is appro.ximately similar El>molog> to /*" nuceus, but the sealed siphonal canal in O. Named afler Riith Barbier, «ife of Jcan- chavesi clearly indicates a relationship with the Ocenebrinae. Pierre Barbier, naine proposée! b> Jcan-Pierrc. who pro\ided the i>pc matenal. The original lot aiso included ajuvénile and a worn adull spccimcii of Ocenebra erinaceus (Linnaeus, 1758) (Fig 26). SubfamiK OCENI-BRINAF Cossmann, 1903 O chavesi difTers from O. erinaceus in its Genus (hencbra Gra>, 1X47 smallcr absolutc si/c at malurity and the size Subgenus Ocenebra sensu stricto rclaii\e to the number ofwhorls, more strongly nodular sculpture, fewer spiral cords, more T>pe species b\ nionot>py: Murex erinaceus decpl\ channclcd suture, and usually more Linnaeus, 1758 rounded whorls. Ocenebra (Ocenebra) chavesi n.sp. Etymol()}»> Figs 22-25 The name previously choscn b\ P. Dautzenberg is retained. Type material Holoupe IRSNB IG 10591/474. A/ores. San Miguel. Paratypcs: 11 IRSNB; 1 coil R Subfamily TRIPTEROTYPHINAE Houart (sanic locality) (1\ & dd); San Miguel. D'Attilio & Hertz, 1988 SMNH Ponta Dclgada. 3 4797; San Miguel, Genus Pterotyphis Jousseaume, 1880 Ponta Delgada. 10-20 m. MNHN; San 1 Miguel. Ponta de Pirâmide. 13 m. 1 MNHN Type species by original désignation: Typhis pinnains Brodenp. 1833 Distribution San Miguel. Azores. depth unknoun. Description Pterotyphis ryalli n.sp. mm Shell up to 21.42 in length at malurity. Figs 18-20 hea\y. nodose Spire high. acute. wiih 15 & Pterotyphis pinnatus -D'ATTILIO HERTZ. protoconch whorls. and up to 6 shouldcrcd & teleoconch whorls Suture impressed 1989: 105. figs 1 2 [not P. pinnatus Protoconch ocenebrine. globose. whorls (Broderip. 1833)). rounded. smooth. Type material cxamined A.xial sculpture of teleoconch whorls Holotype IRSNB IG 28292/473. and one consisting ofhigh. rounded. squamous ribs: firsi whorl with 9 ribs. second uith 10. third with 8- paratype P. Ryall coll.. Ghana. ofmTBusua Island. 10, fourth with 7-9. fifth and last whorl with 6 undcr rocks, appro.ximately 10 depth (dd). osrqua7moruisbs.. pSrpiirmaaln sacnuldptsuerceonodfaryhigcho.rdsn:od2osoen. aPaprpario\xpiemsa:teGlhyan6a,m odfefptBh.uscuoall.IdR.. uHnoduearrtro(cdkds),; first to third whorls. 3 on fourth and fifth. 5 on Ghana, off Busua Id. 15 m. coll. P Ryall (dd); last whorl. Shoulder usually with 2 secondar> Ghana. Sekondi Ba\ (fragment), coll. P. Ryall; Ghana. Takoradi. coll. P Ryall (Iv); Ghana, cords. Aperture ovate Columellar lip smooth. Busua Beach. near Abokwa Id. low tide, coll. E. Roiândv.). adhèrent. Anal notch indistinct. Outer lip smooth. Siphonal canal short, narrow. straight. Distribution ventrally sealed. Ghana. West Africa, livingat lowtide. Light tan to light brown Aperture white. Operculum and radula unknown. Dc.scri|)tion mm Shell up to 11.1 in length (paratype. P. Remarks R>all). Spire high. up to 5 weakly convex, In the collection ofP. Dautzenberg stored in narrow. teleoconch whorls. Suture adpressed. the Institut Royal des Sciences Naturelles de Protoconch unknown. Belgique. I located a sample ofspécimens ofan Axial sculpture of teleoconch whorls unknown ocenebrine species labelled as consisting of three strong. narrow; lamellose "Ocinebra chavesi Dautz. mss. San Miguel. \arices. Other axial sculpture of numerous Cap. Chaves, 1895" and compared wiih the growth lamellae. Aperiural \arix more strongly Western Atlantic Murex nuceus Môrch. de\eloped. Short, spine-like. ventrally sealed 62 HOUART NewspeciesofMuricidae APEX 11(2): 59-75, 20juin 1996 tube at shoulder immediately behind varix. BIBLIOGRAPHY Spiral sculpture of strong, smooth cords, and a fevv smooth threads: 2 or 3 cords on first and Baver. FM.. 1971. New and unusual mollusks second whorls, 3 or 4 on third, 5 or 6 on fourth, 8 or 9 on last whorl. Shoulder with 2-4 narrow coUected by R/VJohn ElliollPillsburyand R/V Gerda in the tropical Western Atlantic. Bull. threads. Mar.Sci. 21: 111-236. Aperture small, ovate. Columellar lip narrow, smooth. rim adhèrent. Anal notch BuLLis, H.R.. 1964. Muricidae (Gastropoda) indistinct. Outer lip vveakly crenulate, smooth from the northeast coast ofSouth America, with within. Siphonal canal short, broad, narrowly descriptions offour new species. Tulane Stud. open. Zool. 11 (4): 99-107. Light tan, occasionallywith darker coloured Dall, W.H., 1889. Reports on the resultsof bands at shoulderand periphery. dredgings. under the supervision ofAlexander Of)erculum and radula unknown. Agassiz, in the GulfofMexico (1877-78) and in Remarks the Caribbean Sea (1879-80), bytheU.S. Coast Pterotyphispinnatus (Broderip. 1833) (Fig. Surxey Steamer "Blake"... 29. Report on the 21) from the Western Atlantic is superficially MoUusca. 2. Gastropoda & Scaphopoda. Bull. similar, but dififers in having a relatively larger, Mus. Coinp. Zool. 18: 1-492. more strongly shouldered and broader shell, D'Attilio, a. & CM. Hertz, 1989. A note on with narrower, more numerous spiral cords and Pterotyphispinnatus {Broderip, 1833). Festivus threads, and thinner, more strongly fimbriate 21 (&&): 105. varicial wings. The only other known Récent species of Houart, R.. 1994. lllustrated catalogue of Pterotyphis is P. fimbhatus (A. Adanis, 1854) Récent species ofMuricidae named since 1971. from the GulfofCaliforniaandMexico. Eastern Wiesbaden: 1-179. Pacific. Marshall, B.A. & R. Hou.art, 1995. A review Etymology ofthe NewZeland Récent species ofPoirieria Named for Peter S. Ryall (Klagenfurt, Jousseaume. 1880 (Mollusca: Gastropoda: Austria) who pro\ided most of the t>'pe Muricidae) with description ofa new species. material. Nautilus 118(2): 27-33. PAULMIER, G., 1994. Mollusques profonds Acknowledgements. des Antilles Françaises. Xenophora 68: 3-19. I am most indebted to the following people who provided the studied spécimens: J.P. Vokes, E.H., 1992. Cenozoic Muricidae ofthe Barbier (Paris); P. Bouchet and S. Gofas western Atlantic région. Part IX -Pterynotus, (Muséum National d'Histoire Naturelle, Paris); Poirieria, Aspella, Dermomurex, Calotrophon, E. Rolén (Vigo, Spain); R Ryall (Klagenfurt). J. Acontholabia, andAttiliosa; additions and Van Goethem (Institut Royal des Sciences corrections. Tulane Stud. Geol. Paleont., 25 (I- Naturelles de Belgique, Brussels). and A. Warén 3): 1-108. (Natural History Muséum, Stockholm). I am Vokes. EH. & A. D'Attilio, 1982. Reviewof also grateful to S.S. Greenhouse and the late the niuricid gtn\xsAttiliosa. Veliger 25(1): 67- R.S. Houbrick (National Muséum of Natural 71 History, Smithsonian Institution, Washington D.C.) for the loan of the paratypes of Tmphon actinophorus and to A. Warén for radular préparation and SEM work. For critically reading the manuscript and comments. I thaiik B.A. Marshall (Muséum of New Zealand, Wellington) and EH. Vokes (Tulane University, New Orléans). 63 APEX 11(2) S9-7S. 20 luin 19% New speciesolMuricidae Houart Figures 1-4 {oppositepage). 1-2. Protoconch of Poirieria (Actinotrophon) fragilis n.sp. Holotype MNHN (scale bar 0.5 mm) 3-4. Protoconch of Dermomurex (Takia) gofasin.sp. Holotype MNHN (scale bar 0.5 mm) 64 HOUART NewspeciesofMuricidae APEX 11(2): 59-75, 20juin 1996 65 APEX 11(2) 59-75. 20juin 19% New speciesol"Muricidae Houart Figures 5-9. Poirieria (Actinotrophon) fragills n.sp. (oppositepage). 5-6. Holotype MNHN, New Caledonia, Musorstom 6, stn DW 483, 2r20' S, 167°48' E, 600 m, 16 mm. 7-9. Paratype MNHN, New Caledonia, Biocal, stn CP75, 22°19' S, 167°23' E, 825-860 m, 15.9 mm. 66 HOUART NewspeciesofMuricidae APEX 11(2); 59-75, 20juin 1996 67 APEX IU2) 59-75. 20juin 1996 New speciesofMuncidae Houart Figures 10-14 {oppositepage). 10-12. Poirieria (Actinotrophon) actinophorus (Dali, 1889). 10-11. Paratype USNM 87089. Blake Sta. 134, 248 fms (456 m), off Santa Cruz, 16.3 mm. 12. Irving Bank, Northeast Atlantic, SEAMOUNT 2, stn DW 205, 32°01.10' N. 27°57.20' W, 348 m, 12.7 mm. 13-14. Dermomurex (Takia) gofasin.sp. Holotype MNHN. Hyères Bank, Northeast Atlantic, SEAMOUNT 2, stn DW 182, 3r23.20' N, 28°53.50' W, 480 m, 18.8 mm. 68

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