Gobiomorus polylepis Ginsburg, 1953. Finescale Sleeper; Guavina del Pacífico, Bocón, Guavina Bocóna, Dormilón de Escamas Finas, Dormilón Manchado. Distribution: Global: Eastern Pacific Ocean; from central Mexico to southern Costa Rica; entering estuaries and ascending river courses; Costa Rica: Ni and Pi (Pacific), 2– 15 m.a.s.l., Per, Dia. Occurrence and conservation status: Nat, DD. References: Bussing (1987: 251; 1998: 424; brief description, including illustrations and an identification key, information on distribution, with a map, and ecology) and Angulo et al. (2013: 1007; listed, including taxonomic information and distributional data).

Published as part of Angulo, Arturo, 2021, New records and range extensions to the Costa Rican freshwater fish fauna, with an updated checklist, pp. 1-72 in Zootaxa 5083 (1) on page 35, DOI: 10.11646/zootaxa.5083.1.1, http://zenodo.org/record/5800630