Astyanax nicaraguensis Eigenmann & Ogle, 1907 .

Nicaraguan Tetra; Sardina, Sardina de Río, Sardinilla, Sabalete, Sábalo, Sardina Común, Plateada, Machaca, Coliroja, Picaculo, Golosa, Tetra, Mojarra, Sardina Nicaraguense.

Distribution: Global: Middle America; from northern Nicaragua to eastern Costa Rica, Atlantic drainages; Costa Rica: LN, RF, SJ, SC, Sa, To, Pa, Ma and Si (Atlantic), 0–1000 m.a.s.l., Pri, Pot.

Occurrence and conservation status: Nat, LC.

References: Bussing (1966: 236, as Astyanax fasciatus (Cuvier 1819) —synonym; listed, information on distribution), Bussing (1987: 69, as A. fasciatus —synonym; 1998: 79, as Astyanax aeneus (Günther 1860), in part—missidentification; brief description, including illustrations and an identification key, information on distribution, with a map, and ecology), Angulo et al. (2013: 991, as A. aeneus, in part—missidentification; listed, including taxonomic information and distributional data), Schmitter-Soto (2017: 1393; redescription, including illustrations and an identification key, information on distribution, with a map, and ecology) and Angulo et al. (2018: 1867; identification key and information on distribution).