crassilabris, Diptychus Steindachner [F.] 1897:653 [508] [List of the reptiles, amphibians and fish of eastern Asia; ref. 19821] Sining-fu, China. Syntypes: (2) NMW 9345 (1). On p. 508 in German version. •Synonym of Diptychus pachycheilus (Herzenstein 1892) -- (Tsao 1964:177 [ref. 13501]). •Synonym of Gymnodiptychus pachycheilus Herzenstein 1892 -- (Wu & Wu 1992:439 [ref. 21205]). •Not treated in Zhang et al. 2016:118 [ref. 34477]. Current status: Synonym of Gymnodiptychus pachycheilus Herzenstein 1892. Cyprinidae: Schizopygopsinae. Habitat: freshwater.