5) Brycon costaricensis Angulo & Gracian-Negrete, 2013; Bryconidae. Costa Rican Machaca, Machaca, Macabi Tetra; Machaca, Sábalo, Sabalete, Machaca del Atlántico, Machaca de Costa Rica (Fig. 4A–B). New record for the Bebedero River basin; previous records of the species in Costa Rican freshwaters were restricted to Atlantic drainages. Basis of the record: Eight specimens were captured in the río Corobicí, near Palmira, Cañas, Guanacaste (10.55285, -85.09607), at 208 m. a.s.l., on May 2, 2021, by Jorge San Gil and Arturo Angulo; an additional specimen was captured in an artificial (irrigation) canal (Canal Oeste) on the Cañas-Upala road, Cañas, Guanacaste (10.47837, -85.13624), at 60 m. a.s.l., on May 2, 2021, by Pablo Morales, Jorge San Gil, Susana Gutiérrez and Arturo Angulo.Additional records on the region (including the Bebedero and Corobicí Rivers) were confirmed by artisanal and sport anglers.

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 13, DOI: 10.11646/zootaxa.5083.1.1, http://zenodo.org/record/5800630