milleri, Heterophallus Radda [A. C.] 1987:127, Figs. 2, 4 [Aquaria: Vivaristische Fachzeitschrift mit Vereinsmitteilungen v. 34 (no. 8); ref. 9125] Río Teapa at Teapa, western side of river, under bridge, Tabasco State, Mexico. Holotype: UMMZ 184705. Paratypes: UMMZ 184706 (1, allotype) 184707 (39). Other material: UMMZ 202702 (3 or 68), 210834 (68), 210841 (1). Also appeared as new in Radda 1988:14 [ref. 34621]. •Species inquirenda in Gambusia -- (Lucinda in Reis et al. 2003:561 [ref. 27061]). •Valid as Heterophallus milleri Radda 1987 -- (Radda 1988:14 [ref. 34621], Nelson et al. 2004:104 [ref. 27807], Miller 2006:230 [ref. 28615], Scharpf 2007:17 [ref. 30398], Riesch et al. 2011:95 [ref. 31292], Page et al. 2013:109 [ref. 32708], Meyer 2015:130 [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 milleri Radda 1987. Poeciliidae: Poeciliinae. Distribution: Southern North America: Grijalva River basin, Atlantic slope (Mexico). Habitat: freshwater.