The species of Clupisoma from Yunnan, China (Teleostei: Siluriformes: Ailiidae), with a comment on the validity of the family Ailiidae Author Li, Xu Author Zhou, Wei text Zootaxa 2018 2018-09-13 4476 1 77 86 journal article 29435 10.11646/zootaxa.4476.1.7 047625bd-d780-4ec9-b46b-774d07566f94 1175-5326 1440444 E84094BF-7993-445F-8123-4C1A2EAB27BE Clupisoma sinense (Huang) ( Fig. 3 ) Platytropius sinensis Huang 1981 : 437 , fig. 1 (Holotype: KIZ 735124, China: Yunnan: Puer County: Xiaoganlanba); Chu & Kuang 1990 : 129 (Shuanjiang County: Xiaoheijiang; Simao County: Xiaoganlanba; Lancang County: Menglang; Jinghong County: Menghan). Laides sinensis : Rainboth 1996: 152 (mainstem of the Mekong, Cambodia). Clupisoma sinensis: Ng 1999 : 384 ; Chen et al . 2005 : 570 (Lancang Jiang); Chen in Yang et al . 2010: 509 (middle and lower Lancang-jiang). Clupisoma sinense : Ferraris 2007 : 357 (Mekong River basin, including Lancangjiang (= upper Mekong River of Yunnan ) and Malay Peninsula); Kottelat 2013 : 252 ; Chen 2013 : 318 (middle and lower Lancang-jiang); Zhang et al . 2016 : 181 (lower Lancang-jiang). Material examined. Holotype : KIZ 735124 , 110.1 mm SL, Yunnan : Pu-Er County : Tongxing Township , main stream of the Lancang-jiang . Paratypes: KIZ 735114–116, 3 ex., 164.3–175.4 mm SL, collected with the holotype; KIZ 735044 , 734056 , 2 ex., 146.7–200 mm SL, Yunnan : Jinghong County : Menghan Township , main stream of the Lancang-jiang ; KIZ 737005 , 1 ex., 187.7 mm SL, Yunnan : Lcncang County : Menglang ; KIZ 75001, 764001 , 2 ex., 219.8 mm SL and 254.4 mm SL, Yunnan : Shuangjiang County : Xiaoheijiang , a branch of Lancang-jiang ; KIZ 7890578 , 1 ex., 205.7 mm SL, Yunnan : Mengla County : Menglun Township , a branch of Lancang-jiang. Diagnosis. Morphometric and meristic data are shown in Tables 1 and 2 . Clupisoma sinense is distinguished from its congeners occurring in China by the following combination of characters: branched anal-fin rays 40–43 (vs. more than 47); dorsal-fin origin located at vertical through middle distance between pectoral-fin origin and pelvic-fin origin (vs. behind middle distance between pectoral-fin origin and pelvic-fin origin, or close to pelvic-fin origin); pectoral-fin spine not extending to pelvic-fin origin (vs. extending to or beyond pelvic-fin origin). Distribution. Lower Lancang-jiang in Yunnan , China (upper Mekong River basin) ( Fig. 2 ); Mekong River basin in Laos ( Kottelat 2001 ), Thailand , and Cambodia ; and the Malay Peninsula ( Zakaria-Ismail 1992 , Rainboth 1996, Ng 1999 ).