amara, Algoma Girard [C. F.] 1856:181 [17] [Proceedings of the Academy of Natural Sciences of Philadelphia v. 8; ref. 1810] Laguna near Fort Brown [= Brownsville], on Rio Grande del Norte [Rio Bravo], Cameron County, Texas, U.S.A. Holotype (unique): USNM 149 (plus pharyngeal arches # 2727). Type catalog: Gilbert 1998:38-39 [ref. 23395]. On p. 17 of separate. •Status uncertain -- (Lee et al. 1980:177 [ref. 22416]). •Valid as Hybognathus amarus (Girard 1856) -- (Cook et al. 1992 [ref. 19894], Espinosa Pérez et al. 1993:16 [ref. 22290], Schmidt 1994:622 [ref. 22424], Bestgen & Propst 1996:41 [ref. 22399], Gilbert 1998:39 [ref. 23395], Nelson et al. 2004:71 [ref. 27807], Scharpf 2005:20 [ref. 28940], Miller 2006:126 [ref. 28615], Page & Burr 2011:217 [ref. 31215], Page et al. 2013:71 [ref. 32708], Page et al. 2023:71 [ref. 40505]). Current status: Valid as Hybognathus amarus (Girard 1856). Leuciscidae: Pogonichthyinae. Distribution: Southern North America: southern U.S.A. (Texas and New Mexico) and northern Mexico. Habitat: freshwater.