Macrobrachium clymene (De Man 1902)

Macrobrachium clymene (De Man, 1902)

Palaemon (Macrobrachium) clymene De Man, 1902:794, pl. 25: fig. 50 [type locality: Batang Baram, Sarawak].

DIAGNOSIS.—Rostrum reaching at most to level of distal end of antennal scale, dorsal margin nearly straight, faintly sinuous, rostral formula: 2–3 + 5–7/2–4, dorsal teeth subequally spaced; branchiostegal suture not extending posteriorly beyond hepatic spine; telson with posterior apex reaching about to level of tips of longer posterolateral spines; antennal scale with lateral margin faintly convex; 1st pereopod with chela less than as long as carpus; 2nd pereopods unequal in length and dissimilar in form; major 2nd pereopod with palm compressed, fingers and palm not concealed by dense pubescence, fingers dentate on opposable margins, gaping, as long as palm, chela 4 times as long as carpus, palm 2 times as long as carpus, carpus as long as merus, without deep longitudinal grooves; minor 2nd pereopod with fingers more than as long as palm; 3rd pereopod not overreaching antennal scale; maximum postorbital carapace length about 15 mm.

RANGE.—Known only from the river in Sarawak representing the type locality.