Hermit crabs Calcinus of the world (Anomura: Diogenidae)


Calcinus revi Poupin & McLaughlin, 1998

Illustrations. - • Holotype male, shield length 2.2 mm, Tuamotu. Holotype from Tuamotu. • Specimen from south Japan. After Asakura & Tachikawa, 2000. • Left third pereopod.

References. - Calcinus revi Poupin & McLaughlin, 1998 (type locality: Fangataufa atoll, Tuamotu, French Polynesia).

Calcinus revi - Asakura & Tachikawa, 2000: 273 (South Japan; Mariana Islands). - Asakura, 2002: 57 (Japan, Mariana).

Shield and cephalic appendages. - Ocular scale with a single terminal spine. Small species, shield length does not exceed 2–3 mm. Anterodorsal plate of branchiostegite unarmed on dorsal margin or with 1–2 spinules subproximally.

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 (0.8–0.9). Distal pilosity of P3 dense, forming a brush of setae.

Armament of telson. - Left lobe of telson with a single spine (sometimes 2). Right lobe with a single spine (range 0–2).

Coloration. - Shield white or cream. Ocular peduncle multicolored without narrow ring close to cornea. Detailed coloration of ocular peduncle: white, gradually turning to blue on distal half (proximal half is light blue on a Japanese specimen illustrated by Asakura & Tachikawa). Distal antennular peduncle yellow-orange (flagella yellow). Distal antennal peduncle yellow-orange (flagellum with same color). Chela uniformly colored, often grading to paler distally (white; carpus of cheliped white with tinge of green on Asakura & Tachikawa (2000) Japanese specimen). Ambulatory legs (P2 & P3) without ring(s) or spot(s) (with a blue tinge on P2 carpi on Asakura & Tachikawa photograph).

Habitat. - Intertidal rocky shores.

Geographic distribution. - South Japan, Mariana Islands, French Polynesia. Indo-West Pacific.

Remarks. - Affiliated to C. kurozumii Asakura & Tachikawa, 2000.

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.