tenellus, Hyborhynchus Girard [C. F.] 1856:179 [15] [Proceedings of the Academy of Natural Sciences of Philadelphia v. 8; ref. 1810] 20 miles west of Choctaw Agency [Scullyville], branch of Sans Bois Creek, Le Flore County Oklahoma, U.S.A. Syntypes: MNHN 0000-0347 [ex USNM 143] (apparently lost), USNM 143 (orig. 10, now 0, 2 pharyngeal arches as #2721). Type catalog: Gilbert 1998:155 [ref. 23395]. On p. 15 of separate. •Valid as Pimephales tenellus (Girard 1856), subspecies tenellus -- (Lee et al. 1980:342 [ref. 22416], Robison & Buchanan 1988:249 [ref. 23393], Page & Burr 1991:131 [ref. 18983], Cross & Collins 1995:108 [ref. 23394], Gilbert 1998:155 [ref. 23395], Fuller et al. 1999:136 [ref. 25838], Houston 2001:145 [ref. 25427], Scharpf 2005:35 [ref. 28940]). •Valid as Pimephales tenellus (Girard 1856) -- (Nelson et al. 2004:76 [ref. 27807], Miller & Robison 2004:180 [ref. 27931], Page & Burr 2011:253 [ref. 31215], Page et al. 2013:77 [ref. 32708], Page et al. 2023:75 [ref. 40505]). Current status: Valid as Pimephales tenellus (Girard 1856). Leuciscidae: Pogonichthyinae. Distribution: North America: central U.S.A. Habitat: freshwater.