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Pectinoidea (Bivalvia: Propeamussiidae, Entoliidae and Pectinidae) from the Tarava Seamounts, Society Islands and the Tuamotu Archipelago (French Polynesia)

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Pectinoidea (Bivalvia: Propeamussiidae, Entoliidae and Pectinidae) from the Tarava Seamounts, Society Islands and the Tuamotu Archipelago (French Polynesia) Pectinoidea (Bivalvia: Propeamussiidae, Entoliidae and Pectinidae) from the Tarava Seamounts, Society Islands and the Tuamotu Archipelago (French Polynesia) Henk H. DIJKSTRA Naturalis Biodiversity Center, Department of Marine Zoology, P.O. Box 9517, 2300 RA Leiden (The Netherlands) [email protected] Philippe MAESTRATI Muséum national d’Histoire naturelle, Département Systématique et Évolution, UMR 7138, case postale 51, 57, rue Cuvier, F-75231 Paris cedex 05 (France) [email protected] Dijkstra H. H. & Maestrati P. 2013. — Pectinoidea (Bivalvia: Propeamussiidae, Entoliidae and Pectinidae) from the Tarava Seamounts, Society Islands and the Tuamotu Archipelago (French Polynesia). Zoosystema 35 (3): 361-375. http://dx.doi.org/10.5252/z2013n3a2 ABSTRACT Eighteen species of Pectinoidea (six Propeamussiidae Abbott, 1954, one KEY WORDS Bivalvia, Entoliidae Teppner, 1922, eleven Pectinidae Rafinesque, 1815) are listed from French Polynesia, the Tarava Seamounts, Society Islands and Tuamotu Archipelago, French littoral, Polynesia. Four Propeamussiidae species (Parvamussium lamellatum n. sp., bathyal, new species, Parvamussium scutulatum n. sp., Parvamussium vesiculosum n. sp., Cyclopecten new records. comptulus n. sp.) are new to science. RÉSUMÉ Pectinoidea (Bivalvia: Propeamussiidae, Entoliidae and Pectinidae) des Monts sous- marins Tarava, des Îles de la Société et de l’Archipel des Tuamotu (Polynésie française). Dix-huit espèces de Pectinoidea (six Propeamussiidae Abbott, 1954, un Ento- MOTS CLÉS Bivalvia, liidae Teppner, 1922, onze Pectinidae Rafinesque, 1815) ont été récoltées des Polynésie française, Monts sous-marins Tarava, des Îles de la Société, et de l’Archipel des Tuamotu, littoral, Polynésie française. Quatre espèces de Propeamussiidae (Parvamussium lamel- bathyal, espèces nouvelles, latum n. sp., Parvamussium scutulatum n. sp., Parvamussium vesiculosum n. sp., nouvelles occurences. Cyclopecten comptulus n. sp.) sont nouvelles pour la science. ZOOSYSTEMA • 2013 • 35 (3) © Publications Scientifiques du Muséum national d’Histoire naturelle, Paris. www.zoosystema.com 361 Dijkstra H. H. & Maestrati P. INTRODUCTION STATION DATA CP chalut à perche (beam trawl); This paper deals with new littoral and bathyal living DW drague Warén (Warén dredge). pectinoid species from the French cruise to the Tarava Seamounts, Society Islands and Tuamotu OTHER ABBREVIATIONS Archipelago (Tarasoc, October 2009). d depth “thickness of paired valves”; In relation to the Pectinoidea species (over 100 spe- h height; IRD Institut de Recherche pour le Développe- cies) from the western and southwestern Pacific ment. (Raines & Poppe 2006; Dijkstra & Beu observa- lv left valve(s); tions), 46 Pectinoidea species (Tröndlé & Boutet rv right valve(s); 2009; Dijkstra & Maestrati 2010) are now reported spm(s) live-taken specimens; from French Polynesia (see Table 1). stn station; w width. Eighteen species of Pectinoidea (six Propeamussi- idae Abbott, 1954, one Entoliidae Teppner, 1922, eleven Pectinidae Rafinesque, 1815) are herein listed SYSTEMATICS from the Tarava seamounts, the Society Islands and the Tuamotu Archipelago, French Polynesia. Superfamily PECTINOIDEA Rafinesque, 1815 Four propeamussiid species (Parvamussium la- Family PROPEAMUSSIIDAE Abbott, 1954 mellatum n. sp., Parvamussium scutulatum n. sp., Genus Propeamussium de Gregorio, 1884 Parvamussium vesiculosum n. sp., and Cyclopecten comptulus n. sp.) are new to science. Propeamussium watsoni (Smith, 1885) Pectinoid species from earlier publications (see References) are briefly reported, but not refigured Amussium watsoni Smith, 1885: 309, pl. 22, figs 8-8c. (Dijkstra 1989a, 1995, 2002, 2011; Dijkstra & Propeamussium watsoni – Dijkstra 1995: 24, figs 27-30, Maestrati 2010). 123-124 (synonymy, references, type data, distribution, All studied material is deposited in the Muséum description). — Dijkstra & Maestrati 2010: 334. national d’Histoire naturelle (MNHN) in Paris, with MATERIAL EXAMINED. — New Guinea. Northeast, 1957 m, some voucher material in the reference collection lectotype spm (BMNH 1887.2.9.3307). of the senior author (part of Naturalis Biodiversity Tarava Seamounts. Tarasoc, stn DW 3339, 18˚23’S, Center, Leiden). 154˚09’W, 778-1050 m, 1 lv; stn DW 3343, 17˚51’S, 154˚04’W, 763-812 m, 19 lv, 8 rv. Tuamotu Archipelago. Tarasoc, stn DW 3377, 15˚38’S, 146˚53’W, 780-825 m, 1 lv; stn DW 3378, 15˚38’S, 146˚51’W, 887-890 m, 7 lv, 2 rv; stn DW 3379, 15˚38’S, ABBREVIATIONS 146˚51’W, 800 m, 2 lv; stn DW 3381, 15˚41’S, 146˚56’W, 830-988 m, 1 rv. EPOSITORIES R DISTRIBUTION. — Northern Indian Ocean, southern coll. HD Henk H. Dijkstra, senior author; Japan, Papua New Guinea, New Caledonia, Vanuatu, LSL The Linnean Society of London, London; and Austral Islands (Dijkstra & Maestrati 2010: 335). MHNB Muséum d’Histoire naturelle de Bordeaux; Depth range 650-1300 m (alive). Now also Society MNHN Muséum national d’Histoire naturelle, Paris; Islands and Tuamotu Archipelago (new record), only BMNH The Natural History Museum, London (for- single valves at 763-1050 m (maximum depth range). merly BMNHUK); RMNH Nationaal Natuurhistorsch Museum, Leiden (now part of Naturalis Biodiversity Center, REMARKS Leiden); The present specimens are similar to the type material, USNM National Museum of Natural History, Wash- ington, DC; although the radial riblets of the left valve are more ZMA Zoölogisch Museum, Amsterdam (now part developed on the central part of the disc (typical only of Naturalis Biodiversity Center, Leiden). in early growth stage) and the internal ribs are more 362 ZOOSYSTEMA • 2013 • 35 (3) Pectinoidea from the Tarava Seamounts, Society Islands and the Tuamotu Archipelago TABLE 1. — Pectinoid species from the Tarava seamounts, Society and Tuamotu and their distribution. Abbreviations: ll, live; dd, dead. Species ll/dd Depth (m) Remarks Propeamussium watsoni (Smith, 1885) dd 763-1050 broadly distributed Parvamussium australanum Dijkstra & Maestrati, 2010 ll 572-981 endemic Australs, Society, Tuamotu Parvamussium lamellatum n. sp. ll 460 endemic Parvamussium scutulatum n. sp. ll 782-1030 endemic Society, Tuamotu Parvamussium vesiculosum n. sp. dd 437-836 endemic Society Cyclopecten comptulus n. sp. ll 700-730 endemic Society Pectinella aequoris Dijkstra, 1991 dd 705-755 broadly distributed Pseudohinnites levii Dijkstra, 1989 ll 493-501 broadly distributed Lamellipecten aduncus Dijkstra & Maestrati, 2010 dd 270-500 endemic Austral Islands Pascahinnites coruscans (Hinds, 1845) dd 315-860 broadly distributed Cryptopecten nux (Reeve, 1853) dd 96-1060 broadly distributed Anguipecten lamberti (Souverbie in Souverbie & dd 440-490 broadly distributed Montrouzier, 1874) Excellichlamys sowerbyi Dijkstra, 1998 dd 430-914 endemic Society, Tuamotu Glorichlamys elegantissima (Deshayes, 1863) dd 285-890 broadly distributed Gloripallium pallium (Linnaeus, 1758) dd 385-830 broadly distributed Gloripallium spiniferum (G. B. Sowerby I, 1835) dd 390-600 endemic French Polynesia Mirapecten boutetorum Dijkstra, 2011 dd 350-870 endemic French Polynesia Haumea rehderi (Grau, 1960) dd 32-38 broadly distributed closely spaced and almost regularly developed in size to DW 3336, 18˚23’S, 154˚06’W, 573-619 m, 1 rv; stn the ventral margin (typical shorter and more irregularly DW 3338, 18˚22’S, 154˚08’W, 713 m, 1 rv; stn CP 3350, development) and in addition greater in number (eight 15˚05’S, 148˚03’W, 981-992 m, alive, 1 spm. with one or two shorter riblets laterally, typical six Society Islands. Tarasoc, stn DW 3406, 16˚31’S, with one shorter riblet laterally). Other conchological 152˚32’W, 504-763 m, alive, 1 spm; stn DW 3415, characters are identical to the type material. 16˚34’S, 151˚47’W, 614-730 m, 1 lv; stn DW 3418, 16˚33’S, 151˚48’W, 580-618 m, alive, 2 spms; stn DW 3420, 16˚46’S, 151˚04’W, 550 m, 1 rv; stn DW 3429, 16˚43’S, 150˚38’W, 493-540 m, 1 rv; stn Genus Parvamussium Sacco, 1897 DW 3442, 16˚41’S, 151˚26’W, 515-550 m, 1 rv; stn DW 3451, 16˚53’S, 151˚21’W, 440-490 m, 2 lv, 3 rv; Parvamussium australanum stn DW 3457, 16˚45’S, 151˚24’W, 520-572 m, alive, Dijkstra & Maestrati, 2010 3 spms, 1 rv. Tuamotu Archipelago. Tarasoc, stn DW 3349, 15˚05’S, Parvamussium australanum Dijkstra & Maestrati, 2010: 148˚03’W, 976-997 m, alive, 1 spm; stn DW 3350, 335, fig. 2A-E. 15˚05’S, 148˚03’W, 981-992 m, alive, 1 spm; stn DW 3351, 15˚04’S, 148˚01’W, 976-983 m, 1 lv; stn MATERIAL EXAMINED. — Austral Islands. East of Rapa DW 3373, 15˚41’S, 146˚54’W, 507-607 m, 1 rv; stn Island, 800-850 m, holotype spm (MNHN 21377). DW 3374, 15˚39’S, 146˚54’W, 703-790 m, 2 lv, 7 rv; stn Tarava Seamounts. Tarasoc, stn DW 3297, 18˚19’S, CP 3376, 15˚41’S, 146˚54’W, 646-737 m, alive, 1 spm; 148˚32’W, 380 m, 1 rv; stn DW 3301, 19˚18’S, 151˚01’W, stn DW 3378, 15˚38’S, 146˚51’W, 887-890 m, 1 lv; stn 700-990 m, 1 lv; stn DW 3302, 19˚15’S, 150˚57’W, 600- DW 3380, 15˚39’S, 146˚56’W, 970-1060 m, alive, 1 spm. 660 m, 1 lv; stn CP 3303, 19˚15’S, 150˚56’W, 587-704 m, DISTRIBUTION. — Austral Islands, alive at 500-800 m 1 lv, 1 rv; stn DW 3309, 19˚12’S, 151˚35’W, 614-664 m, (minimum depth range). Now also Society Islands and alive, 1 spm; stn DW 3325, 19˚17’S, 151˚33’W, 595-628 m, Tuamotu Archipelago (new record), alive at 572-981 m 1 lv; stn DW 3330, 18˚45’S, 152˚16’W, 717-794 m, alive, (minimum depth range). 1 spm, 1 lv, 1 rv; stn DW 3331, 18˚45’S, 152˚17’W, 766 m, alive, 1 spm, 6 lv, 15 rv; stn 3332, 18˚45’S, 152˚18’W, 790-880 m, alive, 1 spm, 9 lv, 8 rv; stn DW 3333, 18˚45’S, REMARKS. — The present specimens are identical to 152˚18’W, 795-975 m, alive, 1 spm, 16 lv, 18 rv; stn the type material.
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