Erotelis armiger (Jordan & Richardson, 1895) .

Armiger’s Goby, Flathead Sleeper; Guavina Cabeza Plana, Gobio de Armiger.

Distribution: Global: Eastern Pacific Ocean; from the lower Gulf of California, Mexico, to Colombia; entering estuaries and littoral lagoons and ascending river courses; Costa Rica: Pi (Pacific), 0– 10 m.a.s.l., Per, Dia.

Occurrence and conservation status: Nat, DD.

References: Angulo et al. (2013: 1006; listed, including taxonomic information and distributional data) and Robertson &Allen (2015: 1977; detailed description, including illustrations, information on distribution, with a map, and ecology).