Garra nujiangensis Chen & Yang

(Figs. 3A and 6)

Garra imberba imberba non Garman: Chen in Yang et al. 2010: 499 (Nu-jiang).

Garra nujiangensis Chen & Yang in Chen et al. 2009: 438–444 (Zhenkang, Yunnan, China) [Salween River drainage]; Chen 2013: 311 (Nu-jiang drainage); Du et al. 2013: 349 (Zhenkang, Yunnan, China) [Salween River drainage].

Material examined. SWFC 0 102086, 0 102091, 2 ex., 144.1–173.5 mm SL, Yunnan: Longling: Xiangda, the lower reaches of the Nu-jiang River (upper Salween River); SWFC 0203020–0203022, 3 ex., 99.3–113.3 mm SL, Yunnan: Cangyuan, Nangun-he (an upper tributary of the Salween River); KIZ 2003000267–2003000271, 2003000273, 2003000275, 2003000276, 2003000280, 2003000283–287, 2003000290, 2003000292, 2003000293, 17 ex., 33.0– 100.9 mm SL, Yunnan: Zhenkang, an upper tributary of the Salween River; SWFC 0 903065, 0 903066, 2 ex., 86.2–160.3 mm SL, Yunnan: Zhenkang: Mengdui, an upper tributary of the Salween River; SWFC 0 903076, 0 903077, 2 ex., 80.3–102.6 mm SL, Yunnan: Zhenkang: Fengwei, an upper tributary of the Salween River; SWFC 1510011–1510018, 8 ex., 70.8–105.9 mm SL, Yunnan: Zhenkang: Banhai, an upper tributary of the Salween River.

Diagnosis. Garra nujiangensis can be easily distinguished from congeners by the absence of the transverse lobe and proboscis. It can be further distinguished from congeners having a poor transverse lobe or no proboscis in the Irrawaddy River and Salween River basins by the combination of the following characters: no barbels (vs. two pairs of barbels in G. abhoyai, G. chakpiensis, G. nambulica, G. namyaensis, G. notata, G. poecilura, G. paralissorhynchus, G. spilota, G. tengchongensis, and G. ukhrulensis); body and all fins without bands or marks (vs. caudal fin with W-shaped marks in G. abhoyai, G. nambulica, G. namyaensis, and G. poecilura; a black band on the distal margin of the dorsal fin in G. namyaensis, G. poecilura, and G. tengchongensis).

Distribution. This species is only found in the Nu-jiang (the upper Salween River) basin, including some branches of the Salween River in west Yunnan, China.