bimaculatus, Xiphophorus Heckel [J. J.] 1848:297, Pl. 9 (figs. 1-2) [Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften. Mathematisch-Naturwissenschaftliche Classe v. 1 (pt 1-5) [1848]; ref. 2069] Veracruz, Mexico. Syntypes: NMW 59918 (4). •Valid as Heterandria bimaculata (Heckel 1848) -- (Rosen & Bailey 1963:131 [ref. 7067], Rosen 1979:330 [ref. 22796], Gamboa Pérez 1992:317 [ref. 38704], Espinosa Pérez et al. 1993:47 [ref. 22290], Greenfield & Thomerson 1997:121 [ref. 22947], Lucinda in Reis et al. 2003:562 [ref. 27061], Nelson et al. 2004:104 [ref. 27807], Lucinda & Reis 2005:40 [ref. 29205], Miller 2006:228 [ref. 28615], Scharpf 2007:19 [ref. 30398], McEachran & DeWitt 2008:52 [ref. 29720], Matamoros et al. 2009:13 [ref. 31241], Page et al. 2013:109 [ref. 32708]). •Valid as Pseudoxiphophorus bimaculatus (Heckel 1848) -- (Radda 1985:128 [ref. 31261], Morales-Cazan & Albert 2012:22 [ref. 31911], Meyer 2015:338 [ref. 34698], Huber 2019:137 [ref. 36941], López-Segovia et al. 2020:111 [ref. 38151]). Current status: Valid as Pseudoxiphophorus bimaculatus (Heckel 1848). Poeciliidae: Poeciliinae. Distribution: Southern North America, Central America: Atlantic slope of Central America: Belize, Guatemala, Honduras and Mexico. Widely introduced in Mexico. Habitat: freshwater.