Ariopsis assimilis (Günther, 1864) .

Mayan Sea Catfish; Bagre Maya.

Distribution: Global: Western Atlantic Ocean; from Quintana Roo, Mexico, to Costa Rica; entering estuaries and littoral lagoons and ascending river courses; Costa Rica: Pa (Atlantic), 0– 7 m.a.s.l., Per, Dia.

Occurrence and conservation status: Nat, LC.

References: Angulo et al. (2013: 993, as Sciades assimilis —synonym; listed, including taxonomic information and distributional data) and Robertson & Van Tassell (2019: 2976; detailed description, including illustrations, information on distribution, with a map, and ecology).