Rhonciscus crocro (Cuvier, 1830) .

Burro Grunt, Atlantic Freshwater Grunt; Corocoro Crocro, Ticopa, Roncador de Río del Atlántico.

Distribution: Global: Western Atlantic Ocean; from southern Florida, USA, to Brazil; entering estuaries and littoral lagoons and ascending river courses; Costa Rica: Sa, To, Pa, Ma and Si (Atlantic), 0– 40 m.a.s.l., Per, Dia.

Occurrence and conservation status: Nat, DD.

References: Bussing (1966: 237, as Pomadasys crocro —synonym; listed, information on distribution), Bussing (1987: 181, as P. crocro —synonym; 1998: 291, as P. crocro —synonym; brief description, including illustrations and an identification key, information on distribution, with a map, and ecology), Angulo et al. (2013: 1002; listed, including taxonomic information and distributional data) and Robertson & Van Tassell (2019: 3734, as P. crocro —synonym; detailed description, including illustrations, information on distribution, with a map, and ecology).