Calcinus latens (Randall, 1840)
Illustrations. - • Male shield length 6.4 mm, Tuamotu. • Left third pereopod, color pattern.
References. - Pagurus latens Randall, 1840: 135 (type locality, ?Hawaii).
Pagurus (Calcinus) latens - Hilgendorf, 1879: 823 (Mozambique).
Calcinus latens - Nobili, 1906: 83 (Yémen). - Miyake, 1982: 113; 1983: 113 (Japan). - Haig & McLaughlin, 1984: 109 (Hawaii). - Wooster, 1984: 154 (Mariana). - Takeda, 1986: 122 (Japan). - Haig & Ball, 1988: 160 (Indonesia). - Nomura et al., 1988: 111 (Japan). - Morgan, 1991: 890 (Christmas and Cocos; western and eastern Australia; Elizabeth and Middleton Reef, Lord Howe Island). - Yu & Foo, 1991: 36 (Taiwan). - Gherardi & McLaughlin, 1994: 622 (Mauritius and Rodrigues). - Jones & Morgan, 1994: 115 (Australia). - Takeda, 1994: 194 (Japan). - Asakura, 1995: 356 (Japan). - Shih & Yu, 1995: 242 (Taiwan). - Tudge, 1995: 13 (Australia). - Poupin, 1997: 703 (Society and Tuamotu, French Polynesia). - Hoover, 1998: 256 (Hawaii). - Shih, 1998: 89 (Taiwan). - Kawamoto & Okuno, 2003: 76 (Okinawa, Japan).
Calcinus abrolhensis Morgan, 1988 : 218, fig. 1 (Houtman Abrolhos, western Australia).
Unpublished records - several specimens, Loyalty Is., LIFOU Expedition, November 2000, det. J. Poupin (MNHN, Paris).
Shield and cephalic appendages. - Ocular scale with a single terminal spine (but up to 3 spines in few abnormal specimens).
Chelipeds (P1). - Upper margin of right chela tuberculated or spinous. Outer face of left palm regularly convex.
Ambulatory legs (P2-P3). - Dactyl of P3 subequal to propodus or slightly shorter (0.9–1.2). Distal pilosity of P3 more prononced than on distal P2, but not forming a dense brush of setae.
Armament of telson. - Left lobe of telson with several spines disposed on posterior margin only (4–7). Right lobe with several spines (0–4).
Coloration. - Shield green-olive. Ocular peduncle uniformly colored. Detailed coloration of ocular peduncle: pink-gray. Distal antennular peduncle blue or dark blue (with a basal black patch; basal segment of peduncle black, median segment blue; flagella orange). Distal antennal peduncle yellow-orange (basal segments green and cream; flagellum orange). Chela uniformly colored, often grading to paler distally (green, turning to cream; carpus of cheliped green). Ambulatory legs (P2 & P3) with ring(s) (distal 2/3 of dactyls cream, proximal 1/3 with a purple ring; propodi pink-green; carpi and meri green).
Habitat. - Intertidal rocky shores, facultative associates of corals (e.g. Pocillopora, Acropora).
Geographic distribution. - Widely distributed: eastern Africa; Mauritius; Christmas & Cocos; Indonesia; Australia; Loyalty Is., Taiwan; Japan; Hawaii; French Polynesia (Society & Tuamotu). Indo-West Pacific.
