polyommus, Floridichthys carpio Hubbs [C. L.] 1936:214, Pl. 3 (figs. 1-3) [Carnegie Institution of Washington Publications No. 457 (art. 17); ref. 2247] Ocean beach near Champoton, Campeche, Yucatán, Mexico. Holotype: UMMZ 102186. Paratypes: UMMZ 102185 (18), USNM 117529 (2). •Synonym of Floridichthys carpio (Günther 1866), but a valid subspecies as described -- (Parenti 1981:530 [ref. 7066]). •Valid as Floridichthys polyommus Hubbs 1936 -- (Greenfield & Thomerson 1997:104 [ref. 22947], Wildekamp 1996:140 [ref. 23649], Castro-Aguirre et al. 1999:225 [ref. 24550], Schmitter-Soto et al. 2000:154 [ref. 27754], Lazara 2001:119 [ref. 25711], Costa in Reis et al. 2003:550 [ref. 27061], Smith et al. 2003:16 [ref. 27621], Nelson et al. 2004:109 [ref. 27807], Miller 2006:311 [ref. 28615], Scharpf 2007:30 [ref. 30398], García-Hernández et al. 2009:92 [ref. 37265], Page et al. 2013:108 [ref. 32708], Lozano-Vilano & De la Maza-Benignos 2016:30 [ref. 35401], Esmaeili et al. 2018:17 [ref. 36738]). Current status: Valid as Floridichthys polyommus Hubbs 1936. Cyprinodontidae: Cyprinodontinae. Distribution: North and Central America: coastal habitats of Yucatán Peninsula (Mexico, Belize, Honduras). Habitat: freshwater, brackish, marine.