atrora, Gambusia Rosen [D. E.] & Bailey [R. M.] 1963:102, Figs. 40C, 43, Pl. 2 (f. 2) [Bulletin of the American Museum of Natural History v. 126 (art. 1); ref. 7067] Río Axtla, Xilitla, San Luis Potosí, Mexico, elevation 300 feet. Holotype: UMMZ 179999. Paratypes: UMMZ 169499 (537), 124172 (1), 124335 (8), 124348-49 (13), 124361 (5). •Valid as Gambusia atrora Rosen & Bailey 1963 -- (Rauchenberger 1989:3 [ref. 15687], Espinosa Pérez et al. 1993:45 [ref. 22290], Lucinda in Reis et al. 2003:558 [ref. 27061], Nelson et al. 2004:103 [ref. 27807], Miller 2006:221 [ref. 28615], Lucinda & Reis 2005:41 [ref. 29205], Scharpf 2007:17 [ref. 30398], Meyer et al. 2010:13 [ref. 30817], Page et al. 2013:108 [ref. 32708], Meyer 2015:59 [ref. 34698], Huber 2019:60 [ref. 36941], Page et al. 2023:145 [ref. 40505]). Current status: Valid as Gambusia atrora Rosen & Bailey 1963. Poeciliidae: Poeciliinae. Distribution: Southern North America: Atlantic Slope (northeastern Mexico). Habitat: freshwater.