Gambusia nicaraguensis Günther 1866 . Nicaraguan Mosquitofish; Olomina, Alumina, Pepesca, Pez Mosquito o Mosquitero, Olomina de Nicaragua o Nicaragüense

Vouchers: UCR 0447-007 (3); LSUMZ 15323 (38), 15353 (2), 15371 (2), 15378 (3) and 15381 (6); other collections: UMMZ 199625 (1) and 199657 (1). Distribution: Central America; from southern Belize to central Panama, Atlantic drainages; (Nicaragua) Co, UI, WK, Pr, GM, KP, Es, BF, IM and To (Atlantic); 0–12 masl; Sec, Dia, Amp. Occurrence and conservation status: Nat; LC (2020), population trend unknown. Literature: Meek (1907: 113, as Paragambusia nicaraguensis —synonym; brief description, including an identification key, and information on distribution and ecology), Villa (1982: 130; detailed description, including illustrations and an identification key, and information on distribution and ecology), Bussing (1998: 209; brief description, including illustrations and an identification key, and information on distribution, with a map, and ecology) and Angulo (2021: 55; listed, including information on distribution).