bifrenatus, Hybopsis Cope [E. D.] 1867:384 [Transactions of the American Philosophical Society (New Series) v. 13 (pt 3) (art. 13); ref. 910] Mouth of a stream which flows into the Schuylkill River at Conshohocken, Montgomery County, Pennsylvania, U.S.A. Syntypes: (about 100) apparently lost. Type catalog: Gilbert 1978:29 [ref. 7042], Böhlke 1984:70 [ref. 13621], Gilbert 1998:49 [ref. 23395]. •Valid as Notropis bifrenatus (Cope 1867) -- (Gilbert 1978:29 [ref. 7042], Lee et al. 1980:238 [ref. 22416], Smith 1986:186 [ref. 22186], McAllister 1990:60 [ref. 14674], Burkhead & Jenkins 1991:354 [ref. 21804], Page & Burr 1991:158 [ref. 18983], Jenkins & Burkhead 1994:433 [ref. 21581], Murdy et al. 1997:89 [ref. 23144], Gilbert 1998:49 [ref. 23395], Scott & Crossman 1998:444 [ref. 24570], Fuller et al. 1999:104 [ref. 25838], Holm et al. 2002:614 [ref. 26241] dated 1869, Nelson et al. 2004:74 [ref. 27807], Scharpf 2005:27 [ref. 28940], Page & Burr 2011:292 [ref. 31215], Kilian et al. 2011: 236 [ref. 31604], Page et al. 2013:74 [ref. 32708], Stout et al. 2022:7 [ref. 39738] as 'Notropis' bifrenatus, Page et al. 2023:74 [ref. 40505]). Current status: Valid as Notropis bifrenatus (Cope 1867). Leuciscidae: Pogonichthyinae. Distribution: Eastern North America. Habitat: freshwater.