fontinalis, Cyprinodon Smith [M. L.] & Miller [R. R.] 1980:405, Fig. 1 [Proceedings of the Biological Society of Washington v. 93 (no. 2); ref. 8663] About 36 kilometers west of Villa Ahumada (30°35'N, 106°51'W), Mexico. Holotype: UMMZ 204189. Paratypes: FMNH 83893 (15); UMMZ 203022 (613), 204190-94 (36, 28, 105, 53, 68); USNM 220601 (15). Type catalog: Ibarra & Stewart 1987:31 [ref. 12367]. •Valid as Cyprinodon fontinalis Smith & Miller 1980 -- (Espinosa Pérez et al. 1993:33 [ref. 22290], Lazara 2001:85 [ref. 25711], Minckley et al. 2002:691 [ref. 26222], Nelson et al. 2004:108 [ref. 27807], Miller 2006:303 [ref. 28615], Scharpf 2007:32 [ref. 30398], Page et al. 2013:107 [ref. 32708], Lozano-Vilano & De la Maza-Benignos 2016:20 [ref. 35401], Esmaeili et al. 2018:12 [ref. 36738]). Current status: Valid as Cyprinodon fontinalis Smith & Miller 1980. Cyprinodontidae: Cyprinodontinae. Distribution: Bolsón de los Muertos, Mexico. Habitat: freshwater.