fairweatheri, Phallichthys Rosen [D. E.] & Bailey [R. M.] 1959:(17), 24 [Zoologica, Scientific Contributions of the New York Zoological Society v. 44 (pt 1, no. 1); ref. 12020] Río San Pedro de Mártir, Río Usumacinta basin, El Petén, Guatemala. Holotype: UMMZ 172456. Paratypes: AMNH 36480 [ex NYZS] (8), 37303 [ex NYZS] (38), 37307 [ex NYZS] (72); UMMZ 172457 (1, allotype). Other specimens at UMMZ (13 lots). •Valid as Phallichthys fairweatheri Rosen & Bailey 1959 -- (Rosen & Bailey 1963:140 [ref. 7067], Espinosa Pérez et al. 1993:48 [ref. 22290], Greenfield & Thomerson 1997:122 [ref. 22947], Bussing 1998:218 [ref. 24179], Lucinda in Reis et al. 2003:565 [ref. 27061], Nelson et al. 2004:104 [ref. 27807], Lucinda & Reis 2005:42 [ref. 29205], Miller 2006:231 [ref. 28615], Scharpf 2007:17 [ref. 30398], Page et al. 2013:109 [ref. 32708], Meyer 2015:171 [ref. 34698], Huber 2019:85 [ref. 36941]). Current status: Valid as Phallichthys fairweatheri Rosen & Bailey 1959. Poeciliidae: Poeciliinae. Distribution: Atlantic slope of Mexico, Belize, Guatemala and Honduras. Habitat: freshwater.