Gobiomorus polylepis Ginsburg 1953 . Finescale Sleeper; Guavina del Pacífico, Bocón, Guavina Bocóna, Dormilón de Escamas Finas, Dormilón Manchado

Vouchers: Not available. Distribution: Eastern Pacific Ocean; from central Mexico to southern Costa Rica; entering estuaries and ascending river courses; (Nicaragua) ER, PN and Ni (Pacific); 0–45 masl; Per, Dia, Amp. Occurrence and conservation status: Nat; DD (2019), population trend unknown. Literature: Bussing (1998: 424; brief description, including illustrations and an identification key, and information on distribution, with a map, and ecology) and Angulo (2021: 35; listed, including information on distribution).