Clupisoma yunnanense (He, Huang & Li)

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 : 80

Clupisoma yunnanense (He, Huang & Li)

( Fig. 4 )

Platytropius yunnanensis He, Huang & Li 1995: 281 , fig. 1 (holotype: YU 8040066, type locality: China: Yunnan: Baoshan County (= Longyang District now): Daojie ; Nujiang [ Salween ] basin).

Clupisoma nujiangense Chen, Ferraris & Yang 2005: 566 , fig. 1 (holotype: KIZ 200310118, China: Yunnan: Baoshan City: Longling County: Mengnuo Township, Sanjiangkou, Nu Jiang River [Salween]); Ferraris 2007: 357 (Upper Salween River, Yunnan, China); Chen in Yang et al. 2010: 509 (lower Nu-jiang).

Clupisoma yunnanense: Kottelat 2013: 252 , Chen 2013: 318 (middle and lower Nu-jiang).

Clupisoma yunnanensis: Zhang et al. 2016: 182 (Middle and lower Nu-jiang).

Material examined. Holotype of Platytropius yunnanensis : YU 8040066, 220 mm SL, Yunnan: Longyang District (=Baoshan County): Daojie Township, main stream of the Nu-jiang; Paratype of Platytropius yunnanensis : YU 8040127, 232 mm SL, collected with the holotype of Platytropius yunnanensis . Holotype of Clupisoma nujiangense : KIZ 200310118, 200 mm SL, Yunnan: Longling County: Mengnuo Township: Sanjiangkou, main stream of the Nu-jiang; Paratypes of Platytropius yunnanensis : KIZ 200310117, KIZ 200310119–120, KIZ 200310125–127, 6 ex., 203.7–241.7 mm SL, collected with the holotype of Clupisoma nujiangense .

Diagnosis. Morphometric and meristic data are shown in Tables 1 and 2. Clupisoma yunnanense is distinguished from its congeners occurring in China by the following combination of characters: palatal tooth patch consists of slender oblique bands that extends nearly to midline, clearly interrupted and not connected to each other (vs. crescent-shaped bands that extend to midline and almost connect to each other); lateral mental barbels short, not extending to ventroposterior margin of operculum (vs. extending to pectoral-fin origin or to anal-fin origin); pelvic fin short, only extending to anal-fin origin (vs. extending beyond anal-fin origin).

Distribution. The lower of Nu-jiang, belonging to the upper Salween River basin ( Fig. 2 ).

Figures

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

FIGURE 4. Comparisons between Clupisoma yunnanensis and Clupisoma nujiangense. (A) C. yunnanensis, YNU 8040066, holotype, 220 mm SL; Yunnan: Baoshan County: Daojie, main stream of the Nu-jiang, the upper Salween River. (B–C) C. nujiangense, KIZ 200310118, holotype, 200 mm SL; Yunnan: Longling County: Mengnuo: Sanjingkou, main stream of the Nujiang, the upper Salween River (C was the live coloration of the same specimens photographed by X.Y. Chen)