rachovii, Heterophallus Regan [C. T.] 1914:66, Fig. A [Annals and Magazine of Natural History (Series 8) v. 14 (no. 79); ref. 3664] Veracruz [probably the city of], Mexico. Lectotype: BMNH 1914.3.23.16. Paralectotypes: BMNH 1914.3.23.17-21 (5). Original spelling rachovii probably should be used, not the emended spelling rachowi. Lectotype selected by Huber 2019:79 [ref. 36941]. •Valid as Gambusia rachowi (Regan 1914) -- (Rosen & Bailey 1963:107 [ref. 7067], Rauchenberger 1989:3 [ref. 15687], Espinosa Pérez et al. 1993:46 [ref. 22290], Lucinda in Reis et al. 2003:560 [ref. 27061], Lucinda & Reis 2005:41 [ref. 29205]). •Valid as Heterophallus rachovii Regan 1914 -- (Nelson et al. 2004:104 [ref. 27807], Miller 2006:231 [ref. 28615], Scharpf 2007:17 [ref. 30398] as ranchovii, Page et al. 2013:109 [ref. 32708], Meyer 2015:132 [ref. 34698], Álvarez-Pleigo et al. 2016:178 [ref. 34825], Huber 2019:79 [ref. 36941], Page et al. 2023:146 [ref. 40505]). Current status: Valid as Heterophallus rachovii Regan 1914. Poeciliidae: Poeciliinae. Distribution: Southern North America: middle Coatzacoalcos River basin, Atlantic slope (Mexico). Habitat: freshwater.