birchmanni, Xiphophorus montezumae Lechner [P.] & Radda [A. C.] 1987:191, Figs. 3-5 [Aquaria: Vivaristische Fachzeitschrift mit Vereinsmitteilungen v. 34 (no. 12); ref. 9181] Río Talol-River Tempoal subsystem of Río Panuco systems, Orizatlán village, Hidlago, Mexico, elevation 400 meters. Holotype: SMF 21154. Paratypes: SMF 21155-56 (11, 4). •Valid as Xiphophorus birchmanni Lechner & Radda 1987 -- (Espinosa Pérez et al. 1993:54 [ref. 22290], Rodriguez 1997:674 [ref. 23266], Morris et al. 2001:69 [ref. 25123], Meyer & Schartl 2002:59 [ref. 26066], Lucinda in Reis et al. 2003:573 [ref. 27061], Nelson et al. 2004:105 [ref. 27807], Lucinda & Reis 2005:44 [ref. 29205], Miller 2006:255 [ref. 28615], Scharpf 2007:22 [ref. 30398], Page et al. 2013:111 [ref. 32708], Meyer 2015:372 [ref. 34698], Huber 2019:143 [ref. 36941], Page et al. 2023:148 [ref. 40505]). Current status: Valid as Xiphophorus birchmanni Lechner & Radda 1987. Poeciliidae: Poeciliinae. Distribution: Southern North America: highlands of Atlantic slope (Mexico). Habitat: freshwater.