mixei, Xiphophorus Kallman [K. D.], Walter [R. B.], Morizot [D. C.] & Kazianis [S.] 2004:9, Figs. 1A-B, 4B [American Museum Novitates No. 3441; ref. 27790] Tributary to the Rio Cuchara, 16°58.42'N, 95°17.31'W, Rio Aguacatengo drainage, Oaxaca, Mexico. Holotype: UANL 15253. Paratypes: IBUNAM 13100 (10); UANL 15254-55 (1, 1). Plus non-type material. •Valid as Xiphophorus mixei Kallman, Walter, Morizot & Kazianis 2004 -- (Lucinda & Reis 2005:44 [ref. 29205], Scharpf 2007:17 [ref. 30398], Meyer 2015:395 [ref. 34698], Huber 2019:149 [ref. 36941]). Current status: Valid as Xiphophorus mixei Kallman, Walter, Morizot & Kazianis 2004. Poeciliidae: Poeciliinae. Distribution: Río del Sol basin, Oaxaca, Atlantic slope of Mexico. Habitat: freshwater.