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Crustacea, Brachyura): Coral Crabs of Western Australia, with Notes on Their Biogeography

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Crustacea, Brachyura): Coral Crabs of Western Australia, with Notes on Their Biogeography DOI: 10.18195/issn.0313-122x.73.2007.315-327 Records of the Western Australian Museum Supplement No. 73: 315-327 (2007). Trapeziidae Miers, 1886 and Tetraliidae Castro, Ng and Ahyong, 2004 (Crustacea, Brachyura): coral crabs of Western Australia, with notes on their biogeography Peter Castro1 and Melissa M. Titelius2 1 Biological Sciences Department, California State Polytechnic University, Pomona, CA 91768, U.S.A. email: [email protected] 2 Department of Aquatic Zoology, Western Australian Museum, Locked Bag 49, Welshpool DC, 6986, Western Australia, Australia. email: [email protected] Abstract - Nineteen species in four genera of coral crabs (Trapeziidae and Tetraliidae) are listed as associated with reef corals and other colonial anthozoans in Western Australia: two Quadrella species, nine Trapezia, six Tetralia, and two Tetraloides. Although species diversity of coral crabs decreases with latitude along the coast of Western Australia, it remains relatively high in the low-diversity, high latitude coral communities along their southernmost limit on the southwestern coast. INTRODUCTION Abbreviations used in the test are as follows: Brachyuran crabs belonging to the Trapeziidae Arch. for Archipelago; colI. for collected by; 1. for and Tetraliidae are obligate symbionts of reef corals Island; juv. for juvenile; n. mls for nautical miles; Pt and other colonial cnidarians. Species of Trapezia for Point. are associated with reef-building, hermatypic corals of the family Pocilloporidae, and tetraliids (Tetralia and Tetraloides) with similar corals of the SYSTEMATICS Acroporidae. Collections of trapeziids and tetraliids from Family Trapeziidae Miers, 1886 Western Australia, the Cocos (Keeling) Islands and Quadrella Dana, 1851 Christmas Island deposited in the Western Australian Museum and other museums, as well as Quadrella coronata Dana, 1852* observations on live materiat are reported herein. Specimens examined are listed starting with those Western Australia records from the most northerly locations. The synonymies Galil, 1986b: 282 (off Port Hedland). - Davie, are mostly restricted to recent nomenclatorial 2002: 495 (NW coast). changes. More complete synonymies, as well as other references for many of the species listed, were Material examined given by Castro (1999a) and in the revision of Western Australia. WAM C 15818 (1 male, 1 Castro et al. (2004). Trapeziids and tetraliids of female), 71 n. mls. NNW of Dampier Arch. eastern Australia were listed by Castro (1997a) and (19°30.2'S, 116°28.3'E to 19°31.3'S, 116°27.8'E), 86- records for all Australian regions by Davie (2002). 100 m, colI. F.R.V. Soe1a, 01.10.1982; WAM C 15817 (1 male), 7 n. mls N of North West Cape, on alcyonacean, colI. R. Rowe on F.R.V. jurabi, MATERIAL AND METHODS 05.08.1973. The material examined is deposited in the following museums: AM (Australian Museum, Remarks Sydney), QM (Queensland Museum, Brisbane), This species is associated with alcyonaceans, MNHN (Museum National d'Histoire Naturelle, antipatharians and gorgonians from the Red Sea, Paris), WAM (Western Australian Museum, Perth), Indian Ocean, and western Pacific Ocean (Castro and RMNH (Nationaal Natuurhistorisch Museum, 1999a; 2000). In Australia, the species has only been Leiden, The Netherlands). recorded from Western Australia (Davie 2002). 316 P. Castro, M.M. Titelius Quadrella maculosa Alcock, 1898 SW of Fenelon 1. (14°09'S, 125°39'E), 4.0-14.0 m, call. G. Morgan, 19.08.1991; WAM C 20577 (1 male, 1 Western Australia records female), KIRE 1991 stn 24, Albert Reef (14°15'S, Davie, 2002: 495 (NW coast). 125°1O'E), 3.0-15.0 m, call. G. Morgan, 20.08.1991; WAM C 21814 (1 male, 1 female), Monte Bello Is, Material examined channel between Alpha and Trimoville Is (20°24'5, Western Australia. WAM C 16790 (1 male), 106 115°33'E), 6.0 m, call. S. Slack-Smith and P. Berry, n. mls N of Port Hedland (18°30.1'S, 118°36.2'E to 23.08.1993; WAM C 27501 (7 males, 7 females), DA4/ 18°31.6'5, 118°37'E), 136-146 m, call. F.R.V. Soela, 00/14, NW of Legendre 1., Dampier Archipelago 19.08.1982; WAM C 24497 (2 females), 18°38'S, (20 0 21.206'S, 116°50.439'E), 9.0-10.0 m, on 118°38'E, 132-135 m, call. F.R.V. Courageous, Pocillopora verrucosa, call. P. Castro, 30.07.2000; 28.05.1978; WAM C 15988 (1 female), unknown WAM C 27508 (2 males, 2 females), DA4/00/37, station, call. F.R.V. Courageous, 1978; WAM C Legendre 1. (20 0 21.270'S, 116°50.557'E), 7.5 m, on ~. 15980 (2 females), 80 n. mls NW of Port Hedland damicornis, call. P. Castro and C. Bryce, 06.08.2000; (19°10'S, 117°49'E to 19°07'S, 117°50'E), call. F.R.V. WAM C 27515 (1 male), Legendre 1. (20°23.354'5, Soe1a, 18.08.1982. 116°53.802'E), DA4/00/38, on P. verrucosa, call. P. Castro and G. Morgan, 06.08.2000; WAM C 27491 (3 Remarks males, 5 females), DA4/00/16, NW of Legendre 1. Known inhabiting antipatharians from the Red (20 0 24.025'S, 116°55.079'E), 13-14 m, on P. verrucosa, Sea and western Indian Ocean and in the Pacific call. P. Castro, 31.07.2000; WAM C 24646 (1 male, 1 Ocean from Japan to French Polynesia (Castro female), stn DA1/98/03, Legendre 1. (20 0 24.320'S, 1999a; 2000) and Western Australia (Davie 2002). 116°108'E), 2.0-15.0 m, call. M. Titelius et al., 18.10.1998; WAM C 28115 (1 male), stn DA1/18/98, Haiiy 1. (20 0 26.400'S, 116°58.634'E), 3.0-10.0 m, colI. Trapezia Latreille, 1828 M. Titelius et al., 23.10.1998; WAM C 27507 (1 male, 1 female), DA4/00/34, W of Gidley 1. (20 0 27.695'S, Trapezia cymodoce (Herbst, 1801) 116°47.512'E), 10.0 m, P. damicornis, call. P. Castro Western Australian records and C. Bryce, 05.08.2000; WAM C 25573 (1 male, 1 Balss, 1935: 139, 145 (5hark Bay), 146 (Rottnest 1.); female), stn DA1/98/29, Angel 1. (20°29.18'5, Black and Prince, 1983: 140 (Pt Quobba; Rottnest 1.); 116°47.71'E), call. M. Titelius et al., 27.10.1998;WAM Berry and Morgan, 1986: 61 (Scott Reef, as Trapezia C 15979 (1 male, 1 female), Kendrew 1., reef flat cf. cymodoce); Jones, 1990: 201 (Shark Bay); (20 0 29'S, 116°32'E), call. 1. Marsh and R. George, Morgan, 1990: 51 (Kimberley region); Jones and 11.10.1972; WAM C 16007 (1 female), Crown-of- Morgan, 1993: 156 (Rottnest 1.); Davie, 2002: 498, Thorns Survey, Kendrew 1., 20.02.1973; WAM C 499 (NW, central, and lower W coast). 16008 (1 male), Crown-of-Thorns Survey, Kendrew 1., 22.02.1973; WAM C 16006 (1 male, 1 female), Material examined Crown-of-Thorns Survey, Kendrew 1., 28.02.1973; Western Australia. QM W 17771 (1 juv. female), WAM C 16023 (1 male, 2 females), Crown-of-Thorns Hibernia Reef (11°58.3'S, 123°32.8'E), patch reef, 6.0- Survey, Kendrew 1., 11.05.1973; WAM C 15931 (4 9.0 m, call. J. Short, 11.05.1992; QM W 17801 (1 male, males,S females), WAM C 11879 (1 male, 1 female), 1 female), 6.0 m, on Stylophora pistillata, 12.05.1992; Crown-of-Thorns Survey, 20.05.1974; 7.5 m; WAM C 11°58.7'S, 123°22.8'E, 1 male, 1 female, 6.0 m, 28116 (2 juvs), stn DA3/99/46, Kendrew 1. 12.05.1992 (QM W 17809); QM W 17638 (1 male, 1 (20 0 29.671'S, 116°35.894'E), 3.0-11.0 m, call. M. female), Cartier Reef, reef slope (12°30.7'5, Titelius et al., 30.08.1999; WAM C 28117 (1 male), stn 123°33.4'E), 23.0 m, on Seriatopora sp., J. 5hort, DA3/99/44, Rosemary 1. (20°29.629'5, 116°34.425'E), 07.05.1992; QM W 15760; (2 males, 2 females), Cartier 2.5-6.0 m, on P. damicornis, call. M. Titelius et al. Reef, lagoon (12°31.8'5, 123°33.1'E), 4.0-6.0 m, J. 28.08.1999; WAM C 27495 (4 males, 4 females), DA4/ Short, 05.05.1992; QM W 21106 (1 female), stn 5, 00/23, NW corner of Roly Rock (20°29.88'5, Jones 1., Vansittart Bay, Kimberley region (13°44.5'5, 116°30.05'E), 15.0 m, on P. verrucosa, call. P. Castro, 126°22.2'E), colI. J. Short, 22.11.1995; WAM C 20581 02.08.2000; WAM C 24483 (2 males, 2 females), (1 feminised male, 1 female), Cassini 1. (13°56'S, Madel King Expedition, NE Malus Is. (20 0 31'S, 125°37'E), 4.0-24.0 m, call. KIRE 1991, 17-18.08.1991; 116°41'E), call. RD. Royce, 31.05.1960; WAM C WAM C 24478 (1 female), Scott Reef (14°03'5, 16020(1 male, 1 female), WSW of Kendrew 1. 121°46'E), call. K. Kenneally, 27.08.1977; WAM C (20 0 32'S, 116°38'E), call. 1. Marsh, 26.05.1972; WAM 18891 (1 male, 1 female), stn 54, Condillac 1. (14°07'S, C 28118 (1 male, 1 female) stn DA3/99/49, Goodwyn 125°34'E), 10.0 m, G. Morgan, 16.07.1988; WAM C 1.
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