F in The freshwater prawns of the genus Macrobrachium Bate, 1868, of Thailand (Crustacea: Decapoda: Palaemonidae)

F. 18. Macrobrachium eriocheirum (W, cl 16.2 mm, Huai Rong waterfall, downstream from National Park, Wai Long Ngau, coll. Y. Cai et al. (ZRC 2000.2669), 11 June 1998): (A) cephalothorax; (B) epistome; (C) first three abdominal sterna with transverse ridge, with median processes; (D) chela of second pereiopod. Macrobrachium forcipatum (W, cl 15.3 mm, CU 1987.135, Satum, south Thailand, coll. P. Naiyanetr, 22 March 1982): (E) cephalothorax; (F) capus and chela of second pereiopod. Scales: (A, D, E, F) 5 mm; (B, C) 2 mm.