Hermit crabs Calcinus of the world (Anomura: Diogenidae)


Calcinus laurentae Haig & McLaughlin, 1984

Illustrations. - • Specimen from Hawaii (copyright J. Hoover). After Hoover, 1998. • Left third pereopod. After Haig & McLaughlin, 1984.

References. - Calcinus laurentae Haig & McLaughlin, 1984: 115 (type locality, Hawaii).

Calcinus species 'B' - Hazlett, 1973: 811 (Hawaii).

Calcinus laurentae - Hoover, 1997b: 182; 1998: 256 (Hawaii).

Shield and cephalic appendages. - Ocular scale with several terminal spines (3–4 spines).

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. 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 and lateral margins (lateral margin with 4–6 spines). Right lobe with several spines.

Coloration. - Shield orange (with irregular dark brown area anteriorly). Ocular peduncle multicolored with narrow ring close to cornea. Detailed coloration of ocular peduncle: pale-orange to red-orange with white ring close to cornea. Distal antennular peduncle blue or dark blue (from Hoover, 1998 photograph; basal segments and proximal portion of ultimate segment red-orange to dark brown; flagella orange). Distal antennal peduncle yellow-orange (proximal segments brown dorsally, lighter colored or white ventrally; spines white; flagellum orange). Chela uniformly colored, often grading to paler distally (dark brown, fading to paler distally and on fingers; carpus of cheliped dark brown). Ambulatory legs (P2 & P3) without ring(s) or spot(s) (dactyls pinkish, lighter proximally and distally; other segments red-orange medially, white or pinkish proximally and distally).

Habitat. - Facultative associates of corals (e.g. Pocillopora, Acropora), shallow-waters (common at depths of 6 m or more in heads of branching coral or on rocky substrate).

Geographic distribution. - Only Hawaii. Indo-West Pacific.

Cite this publication as: J. Poupin (2003, Internet). - Hermit crabs Calcinus of the world (Anomura, Diogenidae). Descriptions, Illustrations, Identification, and Information Retrieval, using the DELTA format.