Species that contain: Xiphophorus and variatus and variatus [ 4 ] records

dorsalis, Platypoecilus variatus Stoye [F. H.] 1932:1, Fig. [The Home Aquarium Bulletin v. 2 (no. 10); ref. 36955] Tampico, Mexico. No types known. Description induced by a miscommunication with C. L. Hubbs, see Stoye 1933:306 [ref. 36956]. •Synonym of Xiphophorus variatus (Meek 1904) -- (Huber 2019:145 [ref. 36941]). Current status: Synonym of Xiphophorus variatus (Meek 1904). Poeciliidae: Poeciliinae. Habitat: freshwater.

evelynae, Xiphophorus variatus Rosen [D. E.] 1960:87, Figs. 1, 4, 7 [Bulletin of the Florida State Museum, Biological Sciences v. 5 (no. 4); ref. 11945] Side branch of the Río Xaltepuztla, Puebla, Mexico. Holotype: UMMZ 177306. Paratypes: UMMZ 177307 (1, allotype). Other material (or paratypes): UMMZ 124303 (12), 124309 (1), 124312-13 (25, 20), 124317-18 (40, 9), 124321 (17). •Synonym of Xiphophorus variatus (Meek 1904), but a valid subspecies -- (Rosen & Bailey 1963:65 [ref. 7067]). •Valid as Xiphophorus evelynae Rosen 1960 -- (Rosen 1979:354 [ref. 22796], Espinosa Pérez et al. 1993:55 [ref. 22290], Rodriguez 1997:674 [ref. 23266], Meyer & Schartl 2002:59 [ref. 26066], Lucinda in Reis et al. 2003:573 [ref. 27061], Chen & Borowsky 2004:27 [ref. 27672] doubtfully distinct from variatus, Nelson et al. 2004:105 [ref. 27807], Lucinda & Reis 2005:44 [ref. 29205], Miller 2006:257 [ref. 28615], Scharpf 2007:23 [ref. 30398], Page et al. 2013:111 [ref. 32708], Meyer 2015:380 [ref. 34698], Huber 2019:145 [ref. 36941], Page et al. 2023:148 [ref. 40505]). Current status: Valid as Xiphophorus evelynae Rosen 1960. Poeciliidae: Poeciliinae. Distribution: Southern North America: Tecolutla River basin, Puebla, Atlantic slope (Mexico). Habitat: freshwater.

variatus, Platypoecilus Meek [S. E.] 1904:146, Pl. 10 [Field Columbian Museum, Zoölogical Series v. 5; ref. 2958] Valles, San Luis Potosí, Mexico. Holotype: FMNH 4501. Paratypes: FMNH 4449 (40), 4461 (6), 4471 (24), 4486 (18), 4501-02 (1, 10), 14360-61 (5, 1), 14435-36 (4, 3), 72570 (3). Type catalog: Ibarra & Stewart 1987:67 [ref. 12367]. •Valid as Xiphophorus variatus (Meek 1904) -- (Rosen & Bailey 1963:64 [ref. 7067], Rosen 1979:353 [ref. 22796], Lee et al. 1980:556 [ref. 22416], Page & Burr 1991:234 [ref. 18983], Espinosa Pérez et al. 1993:56 [ref. 22290], Rodriguez 1997:674 [ref. 23266], Fuller et al. 1999:319 [ref. 25838], Morris et al. 2001:69 [ref. 25123], Sakai et al. 2001:89 [ref. 25693], Meyer & Schartl 2002:59 [ref. 26066], Lucinda in Reis et al. 2003:575 [ref. 27061], Chen & Borowsky 2004:27 [ref. 27672], Nelson et al. 2004:106 [ref. 27807], Mundy 2005:296 [ref. 28379], Lucinda & Reis 2005:44 [ref. 29205], Miller 2006:263 [ref. 28615], Scharpf 2007:24 [ref. 30398], Minckley & Marsh 2009:258 [ref. 31114], Page & Burr 2011:443 [ref. 31215], Page et al. 2013:112 [ref. 32708], Angulo et al. 2013:997 [ref. 33194], Meyer 2015:408 [ref. 34698], Robins et al. 2018:237 [ref. 35886], Huber 2019:152 [ref. 36941], Chan et al. 2023:151 [ref. 40365], Page et al. 2023:148 [ref. 40505]). Current status: Valid as Xiphophorus variatus (Meek 1904). Poeciliidae: Poeciliinae. Distribution: Southern North America: Atlantic slope (Mexico). Introduced elsewhere. Habitat: freshwater.

xiphidium, Platypoecilus Hubbs [C. L.] & Gordon [M.] in Friedman & Gordon 1934:447, Fig. 1 [American Naturalist v. 68 (no. 718); ref. 36954] Río Corona at La Corona, 15 miles north of Ciudad, Victoria, Río Soto la Marina system, Tamualipas, Mexico. Lectotype: UMMZ 97573. Paralectotypes: UMMZ 108663 (164), plus other specimens at UMMZ. As nomen nudum in Gordon 1932:287 [ref. 22232]. Lectotype selected by Rosen 1960:83 [ref. 11945]. •Synonym of Xiphophorus variatus (Meek 1904), but a valid subspecies -- (Rosen & Bailey 1963:65 [ref. 7067]). •Valid as Xiphophorus xiphidium (Hubbs & Gordon 1934) [author often seen as Gordon 1932] -- (Rosen 1979:354 [ref. 22796], Espinosa Pérez et al. 1993:57 [ref. 22290], Rodriguez 1997:674 [ref. 23266], Meyer & Schartl 2002:59 [ref. 26066], Lucinda in Reis et al. 2003:575 [ref. 27061], Nelson et al. 2004:106 [ref. 27807], Lucinda & Reis 2005:44 [ref. 29205], Scharpf 2007:24 [ref. 30398], Page et al. 2013:112 [ref. 32708], Meyer 2015:411 [ref. 34698], Huber 2019:152 [ref. 36941], Page et al. 2023:148 [ref. 40505]). Current status: Valid as Xiphophorus xiphidium (Hubbs & Gordon 1934). Poeciliidae: Poeciliinae. Distribution: Southern North America: upper Soto La Marina River drainage, Tamaulipas, Atlantic slope (Mexico). Habitat: freshwater.