Výskyt
Jižní Amerika — povodí řeky Caroní, povodí řeky Orinoco, Venezuela.
Typová lokalita
Creek tributary to Tocomita River, east of Guri airport, in pool at culvert, Caroní River drainage, Bolivar State, Venezuela, 7°[?76ꞌ94"]N, 63°08ꞌ06"W.
Původní popis
Ruiz-C, R. I., Román-Valencia, C. & Taphorn, D. C. 2023. Redescription of Astyanax brevoortii (Gill, 1858) (Characiformes, Characidae) and description of three new species of Astyanax subgenus Poecilurichthys, Caribbean Sea, Venezuela. Journal of Aquaculture & Marine Biology v. 12 (no. 2): 116-127.
Použitá literatura
Fricke, R., Eschmeyer, W. N. & Van der Laan, R. (eds). 2025. Eschmeyer's catalog of fishes: Genera, species, references. World Wide Web.