Bathygobius mystacium Ginsburg 1947 . Island Frillfin, Island Frillfin Goby; Gobio Bandeado

Vouchers: Not available. Distribution: Western Atlantic Ocean; from southern Florida, USA, to Colombia and the lesser antilles; entering estuaries and littoral lagoons and ascending river courses; (Nicaragua) KP, Es and BF (Atlantic); 0–5 masl; Per, Dia, Amp. Occurrence and conservation status: Nat; LC (2015), population trend unknown. Literature: Villa (1982: 227; detailed description, including illustrations and an identification key, and information on distribution and ecology) and Robertson & Van Tassell (2019: 4105; detailed description, including illustrations, and information on distribution, with a map, and ecology).