Clupisoma sinense (Huang)

Li, Xu & Zhou, Wei, 2018, The species of Clupisoma from Yunnan, China (Teleostei: Siluriformes: Ailiidae), with a comment on the validity of the family Ailiidae, Zootaxa 4476 (1), pp. 77-86 : 79-80

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).

Figures

FIGURE 2. Map showing localities of Clupisoma longianale, C. sinense, and C. yunnanensis in Yunnan, China.

FIGURE 3. Clupisoma sinense, KIZ 890578, paratype, 110.1 mm SL; Yunnan: Mengla County: Menglun Township, Luosuojiang, an upper tributary of the Mekong River.