Polydactylus opercularis (Gill 1863) . Yellow Bobo; Bobo Amarillo, Barbudo de Nueve Barbas

Vouchers: Not available. Distribution: Eastern Pacific Ocean; from southern California, USA, to Chile; entering estuaries and littoral lagoons and ascending river courses; (Nicaragua) ER and PN (Pacific); 0–8 masl; Per, Dia, Amp. Occurrence and conservation status: Nat; LC (2010), population trend unknown. Literature: Villa (1982: 211; detailed description, including illustrations and an identification key, and information on distribution and ecology) and Robertson & Allen (2015: 1403; detailed description, including illustrations, and information on distribution, with a map, and ecology).