verecundus, Cyprinodon Humphries [J. M.] 1984:62, Fig. 2 [Copeia 1984 (no. 1); ref. 17432] Chichancanab Lagoon, main body of water, about 3.6 kilometers from northern end of basin, Yucatán, Mexico. Holotype: UMMZ 207694. Paratypes: UMMZ 207691 (11), 207695 (12), 207692-93 (1, 7), 207696 (1, allotype); UNO 3413. •Valid as Cyprinodon verecundus Humphries 1984 -- (Gamboa Pérez 1992:313 [ref. 38704], Espinosa Pérez et al. 1993:34 [ref. 22290], Lazara 2001:96 [ref. 25711], Strecker 2002:302 [ref. 26655], Costa in Reis et al. 2003:550 [ref. 27061], Nelson et al. 2004:109 [ref. 27807], Strecker 2005:107 [ref. 28252], Miller 2006:311 [ref. 28615], Scharpf 2007:30 [ref. 30398], Page et al. 2013:108 [ref. 32708], Lozano-Vilano & De la Maza-Benignos 2016:29 [ref. 35401], Esmaeili et al. 2018:16 [ref. 36738], Page et al. 2023:143 [ref. 40505], Aguilar-Medrano & Vega-Cendejas 2024:[3] [ref. 41240]). Current status: Valid as Cyprinodon verecundus Humphries 1984. Cyprinodontidae: Cyprinodontinae. Distribution: Southern North America: endorheic Laguna Chichancanab (Quintana Roo, Mexico) endemic. Habitat: freshwater.