NEW RECORDS OF 31 SPECIES OF BRACHYURAN FROM THE JOINT TAIWAN-FRANCE EXPEDITIONS, “TAIWAN 2000” AND “TAIWAN 2001”, OFF DEEP WATERS IN TAIWAN

BY

PING-HO HO1), PETER K. L. NG2), TIN-YAM CHAN3,5) and DING-AN LEE4) 1) National Museum of Marine Biology and Aquarium, 2 Houwan Road, Checheng, Pingtung, Taiwan 944, R.O.C. 2) Department of Biological Sciences, National University of Singapore, Kent Ridge, Singapore 119260, Republic of Singapore 3) Institute of Marine Biology, National Taiwan Ocean University, 2 Pei-Ning Road, Keelung, Taiwan 202, R.O.C. 4) Taiwan Fisheries Research Institute, Council of Agriculture, 199 Ho-Ih Road, Keelung 202, Taiwan, R.O.C.

ABSTRACT In recent collections from deep waters around Taiwan, numerous new records of brachyuran crabs were obtained for Taiwan. Thirty-one species are added to the known Taiwanese brachyuran fauna, including 13 new records of genera and two new records of families (Homolodromiidae and Cymonomidae). The established brachyuran fauna for Taiwan now stands at 604 species.

RÉSUMÉ Au cours de collectes récentes dans les eaux profondes autour de Taiwan, de nombreux signale- ments nouveaux de crabes Brachyoures ont été obtenus. Trente et une espèces sont ainsi ajoutées à la faune connue des Brachyoures de Taiwan, incluant 13 nouvelles citations de genres et deux nouvelles citations de familles (Homolodromiidae et Cymonomidae). La faune des Brachyoures de Taiwan s’élève maintenant à 604 espèces.

INTRODUCTION In their synopsis of the brachyuran crab fauna of the main island of Taiwan, Ng et al. (2001) listed 548 species from the island. Since then, another 25 species have been added (Galil, 2001; Hsueh & Huang, 2002; Huang et al., 2002; Jeng & Ng, 2002; Ng & Huang, 2002; Ng et al., 2002, 2003; Jeng et al., 2003; Ng & Ho, 2003a, b; Ng & Liu, 2003; Ng & McLay, 2003; Schubart et al., 2003, also together

5) Corresponding author; e-mail: [email protected] © Koninklijke Brill NV, Leiden, 2004 Crustaceana 77 (6): 641-668 Also available online: www.brill.nl 642 PING-HO HO ET AL. with the species Geothelphusa shokitai Shy & Ng, 1988 from Diayutai and omitted in the 2001 list). Of the six families, i.e., Homolodromiidae, Cymonomidae, Phyllotymolinidae, Orithyiidae, , and , expected but not yet recorded from the main island in Ng et al. (2001), the Hexapodidae have recently been found (Huang et al., 2002). The “Taiwan 2000” and “Taiwan 2001” cruises, launched by the third author together with the Taiwan Fisheries Research Institute, National Science Council (Taiwan, R.O.C.), National Museum of Marine Science & Technology (Keelung, R.O.C.), Muséum national d’Histoire naturelle (Paris, France), and the IRD (Institut de Recherche pour le Développement, France) to explore the deep waters of Taiwan, have collected numerous crab species and this material contains repre- sentatives of 31 species not previously known from Taiwan. These include 13 new records of genera and two new records of families, the Homolodromiidae and the Cymonomidae. New species and new records of Ethusina and of Pilumnidae based on these expeditions have been reported on separately by Ng & Ho (2003a, b). Specimens have been deposited in the National Taiwan Ocean University, Keelung (NTOU), with vouchers in the Muséum national d’Histoire naturelle, Paris; the National Museum of Marine Science & Technology, Keelung; the Na- tional Museum of Marine Biology and Aquarium (NMMBA), Pingtung, Taiwan; and the Zoological Reference Collection (ZRC), Raffles Museum, National Uni- versity of Singapore. The measurements provided are of the carapace width and carapace length, respectively. The abbreviations G1 and G2 are used for the male first and second pleopods, respectively; and CP and DW refer to Beam Trawl and Warén Dredge, respectively. Synonymies are not listed but the reader is referred to the latest work where this can be found. One family, the , has not been treated in this paper, because those specimens have been sent to Dr. Bella Galil in Israel for further investigation, as per an original agreement by the third author and cruise leader (CTY). We have looked at this material briefly and there are clearly some new records from that family as well. These records will be published in separate papers by her at a later date, as a part of her revision of various leucosiid genera (e.g., Galil, 2001).

SYSTEMATIC ACCOUNT Family De Haan, 1839 Homologenus A. Milne-Edwards, in Henderson, 1888 Homologenus malayensis Ihle, 1912 (fig. 1A) ◦  ◦  Material examined. — One female, 14.3 × 11.7 mm, Stn CP32, 22 01.7 N 120 11.1 E, 910- 1129 m, coll. “Taiwan 2000”, R/V “Fishery Researcher 1”, 30 July 2000.