Cheonda Girard [C. F.] 1856:207 Fem. Cheonda cooperi Girard 1856. Type by subsequent designation. Type designated by Jordan & Gilbert 1877:92 [ref. 4907]. Miller 1945:104 [ref. 3016] believes that C. cooperi is an intergeneric hybrid between Mylocheilus and Richardsonius, Gilbert 1998:15 [ref. 23395] concurs. Current status: Unknown. Leuciscidae: Pogonichthyinae.