speciosa, Gambusia Girard [C. F.] 1859:121 [Proceedings of the Academy of Natural Sciences of Philadelphia v. 11; ref. 27410] Río San Diego, near Cadereita, Nuevo León, Mexico. Syntypes: whereabouts unknown. •Synonym of Gambusia affinis (Baird & Girard 1853) -- (Rosen & Bailey 1963:95 [ref. 7067]). •Valid as Gambusia speciosa Girard 1859 -- (Rauchenberger 1989:3 [ref. 15687], Espinosa Pérez et al. 1993:47 [ref. 22290], Lucinda in Reis et al. 2003:560 [ref. 27061], Garrett & Edwards 2003:783 [ref. 27258], Nelson et al. 2004:104 [ref. 27807], Lucinda & Reis 2005:41 [ref. 29205], Miller 2006:227 [ref. 28615], Scharpf 2007:19 [ref. 30398], Minckley & Marsh 2009:254 [ref. 31114], Meyer et al. 2010:13 [ref. 30817], Page & Burr 2011:446 [ref. 31215], Langerhans et al. 2012:1530 [ref. 32308], Page et al. 2013:109 [ref. 32708], Meyer 2015:103 [ref. 34698], Huber 2019:72 [ref. 36941], Page et al. 2023:146 [ref. 40505]). Current status: Valid as Gambusia speciosa Girard 1859. Poeciliidae: Poeciliinae. Distribution: Southern North America: Texas (U.S.A.) and Atlantic slope (Mexico). Habitat: freshwater.