beltrani, Cyprinodon Álvarez [J.] 1949:236, Fig. 1 [Revista de la Sociedad Mexicana de Historia Natural v. 10 (nos 1-4); ref. 12995] Lake Chichancanab, Quintana Roo, Mexico. Holotype: whereabouts unknown. Paratypes: (64 or 65) BMNH 1951.12.3.1-4 (4), UMMZ 160743 (6 or 7). •Valid as Cyprinodon beltrani Álvarez 1949 -- (Gamboa Pérez 1992:310 [ref. 38704], Espinosa Pérez et al. 1993:33 [ref. 22290], Lazara 2001:82 [ref. 25711], Strecker 2002:302 [ref. 26655], Costa in Reis et al. 2003:549 [ref. 27061], Nelson et al. 2004:108 [ref. 27807], Strecker 2005:107 [ref. 28252], Miller 2006:298 [ref. 28615], Scharpf 2007:30 [ref. 30398], Page et al. 2013:107 [ref. 32708], Lozano-Vilano & De la Maza-Benignos 2016:17 [ref. 35401], Esmaeili et al. 2018:10 [ref. 36738], Page et al. 2023:142 [ref. 40505], Aguilar-Medrano & Vega-Cendejas 2024:[3] [ref. 41240]). Current status: Valid as Cyprinodon beltrani Álvarez 1949. Cyprinodontidae: Cyprinodontinae. Distribution: Southern North America: Atlantic slope, Lake Chichancanab (Quintana Roo, Mexico). Habitat: freshwater.