Periclimenes andamanensis Kemp 1922

Periclimenes andamanensis Kemp, 1922

Periclimenes (Ancylocaris) andamanensis Kemp, 1922:204, figs. 54–57 [type locality: Ross Channel, Port Blair, Andaman Islands; 7–15 meters].

Periclimenes andamanensis.—Bruce, 1977j:269.

DIAGNOSIS.—Integument smooth, not pitted, on lateral areas of carapace and abdomen; rostrum reaching level of distal end of antennal scale or beyond, slenderly palaemonoid, directed slightly anterodorsad in anterior , rostral formula 1 + 6–8/2–4, posteriormost tooth somewhat isolated from remainder of dorsal rostral series, situated posterior to level of hepatic spine; carapace with supraorbital spine, hepatic spine no larger than antennal spine, arising almost directly posterior to latter, not extending beyond anterior margin of carapace, orbital angle rounded, not ovate; abdomen with 6th somite about 1 times as long as 5th; telson with 2 pairs of dorsolateral spines anterior to posterior margin, anterior pair arising anterior to mid-length; eye with cornea hemispherical, not produced distally; antennular peduncle with 1 distolateral spine on basal segment; antennal scale 5–5 times as long as wide, lateral margin slightly concave, distolateral tooth far overreaching distal margin of blade; 4th thoracic sternite with slender median process; 1st pereopod far overreaching antennal scale; 2nd pereopod with fingers – as long as palm, carpus –1 times as long as palm, 6–7 times as long as distal width, with 1 or 2 distal spines, merus with distal tooth on flexor margin; 3rd pereopod with dactyl not subdistally truncate, without denticulate lobe on flexor margin, simple, not biunguiculate, flexor margin regularly concave, propodus with spinules on flexor margin, not segmented; 5th pereopod reaching about to distal end of antennal scale or beyond; maximum postorbital carapace length about 4 mm.

RANGE.—Madagascar, Andaman Islands, Ryukyu Islands, and Queensland, Australia; the only Indonesian record is based on a specimen identified by J. Roux and reported by Dammerman (1929:117 and 1948:511, fig. 43) from a brackish pool on Pulau Sertung in Selat Sunda.