Atherinella guatemalensis (Günther 1864). Guatemala Silverside, Peppered Silverside; Pejerrey De Guatemala, Plateadito de Huamuchal, Sardina Vouchers: UCR 0052-004 (4). Distribution: Eastern Pacific Ocean; from central Mexico to northern Nicaragua; entering estuaries and littoral lagoons and ascending river courses; (Nicaragua) PN (Pacific); 0–15 masl; Per, Dia, Amp. Occurrence and conservation status: Nat; LC (2019), population trend unknown. Literature: Villa (1982: 139, as Melaniris guatemalensis —synonym; detailed description, including illustrations and an identification key, and information on distribution and ecology) and Robertson & Allen (2015: 2527; detailed description, including illustrations, and information on distribution, with a map, and ecology).

Published as part of Angulo, Arturo, Betts, Joel T., González-Alemán, Néstor J., Castañeda, Edgar, Berghe, Eric Van Den, Elías, Diego J., Mcmahan, Caleb D. & Matamoros, Wilfredo A., 2023, Continental fishes of Nicaragua: diversity, distribution and conservation status; with an annotated and illustrated checklist of species and an identification guide to families, pp. 1-89 in Zootaxa 5376 (1) on page 57, DOI: 10.11646/zootaxa.5376.1.1, http://zenodo.org/record/10208788