Macrobrachium mirabile (Kemp 1917)

Macrobrachium mirabile (Kemp, 1917)

Palaemon mirabilis Kemp, 1917:227, pl. 10 [type locality: Rangoon. Burma (= Myanmar)].

Macrobrachium mirabile.—Holthuis, 1950a:174.

DIAGNOSIS.—Rostrum not nearly reaching level of distal end of antennal scale, with rather high dorsal crest, rostral formula: 4–6 + 9–10/1–2, dorsal teeth subequally spaced; branchiostegal suture not extending posteriorly beyond hepatic spine; telson with posterior apex not overreaching posterolateral spines; antennal scale with lateral margin straight; 1 st pereopod with chela more than as long as carpus; 2nd pereopods subequal in length and similar in form, palm subcylindrical, fingers not concealed by dense pubescence, not dentate on opposable margins, not gaping, fingers 1 times as long as palm, latter without any dense pubescence, chela 1 times as long as carpus, palm less than as long as carpus, carpus more than as long as merus, not longitudinally grooved; 3rd pereopod overreaching antennal scale by length of dactyl, propodus not profusely spinose or scaly; maximum carapace length less than 15 mm.

RANGE.—Brackish water in the Gangetic delta, Burma (Myanmar), Thailand, and Borneo.