grandissimus, Fundulus Hubbs [C. L.] 1936:209, Pl. 2 (figs. 3-4) [Carnegie Institution of Washington Publications No. 457 (art. 17); ref. 2247] Progreso, Yucatán, Mexico. Holotype: MCZ 32909. Paratypes: MCZ 54531 [ex 32909 in part] (8); UMMZ 95833 [ex MCZ 32909] (2); USNM 50513 (now 11), 50514 (4). Description based on specimens recorded by Evermann and Goldborough 1902:149 and by Barbour and Cole 1906:156 under the name of Fundulus grandis. •Valid as Fundulus grandissimus Hubbs 1936 -- (Espinosa Pérez et al. 1993:36 [ref. 22290], Wildekamp 1996:258 [ref. 23649], McEachran & Fechhelm 1998:910 [ref. 23897], Castro-Aguirre et al. 1999:219 [ref. 24550], Lazara 2001:148 [ref. 25711], Wiley & Ghedotti 2003:1150 [ref. 27020], Nelson et al. 2004:102 [ref. 27807], Miller 2006:312 [ref. 28615], García-Ramírez et al. 2007:14 [ref. 29345], Scharpf 2007:12 [ref. 30398], Ghedotti & Davis 2013:58 [ref. 32490] in subgenus Fundulus, Page et al. 2013:105 [ref. 32708], Lozano-Vilano & De la Maza-Benignos 2016:9 [ref. 35401], Page et al. 2023:140 [ref. 40505]). Current status: Valid as Fundulus grandissimus Hubbs 1936. Fundulidae. Distribution: Southern North America: Yucatán (Mexico). Habitat: brackish, marine.