chungtienensis, Diptychus (Ptychobarbus) Tsao [W.-H.] 1964:174, Fig. 4-31 [The cyprinid fishes of China v. 1; ref. 13501] Zhongdian, Yunnan Province, China. Syntypes: (5). •Valid as Diptychus chungtienensis Tsao 1964 -- (Chen & Huang in Chen 1998:227 [ref. 23556]). •Valid as Ptychobarbus chungtienensis (Tsao 1964) -- (Mo in Chu & Chen 1989:317 [ref. 13584], Wu & Wu 1992:419 [ref. 21205], Zhu 1995:91 [ref. 25213], Chen & Chen 2001:147 [ref. 25461], Guo 2021:433 [ref. 38617]). •Valid as Ptychobarbus chungtienensis (Tsao 1964), subspecies chungtienensis (Tsao 1964) -- (Chen & Cao et al. in Yue 2000:345 [ref. 25272], Jiang et al. 2016:277 [ref. 37624], Zhang et al. 2016:119 [ref. 34477], Zhang et al. 2019:322 [ref. 36699]). Current status: Valid as Ptychobarbus chungtienensis (Tsao 1964). Cyprinidae: Schizopygopsinae. Distribution: East Asia: upper Yangtze River basin, China. Habitat: freshwater.