Institute for Biodiversity Science and Sustainability
Online Version, Updated 4 January 2022

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Eschmeyer's Catalog of Fishes
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usumacintae, Potamarius Betancur-R. [R.] & Willink [P. W.] 2007:820, Fig. 2 (A-C), 3, 5A [Copeia 2007 (no. 4); ref. 29439] Petén, Río San Pedro at junction with spring-fed lagoon at El Paso de Caballo, Río Usumacinta basin, Guatemala. Holotype: UMMZ 248165. Paratypes: many at AMNH, AUM, ECO-SC, FMNH, UMMZ. •Valid as Potamarius usumacintae Betancur-R. & Willink 2007 -- (Page et al. 2013:82 [ref. 32708]). Current status: Valid as Potamarius usumacintae Betancur-R. & Willink 2007. Ariidae: Ariinae. Distribution: Río Usumacinta basin, Guatemala and Mexico. Habitat: freshwater.