Výskyt
Jižní Amerika — horní část řeky Río Negro, Venezuela a Kolumbie.
Typová lokalita
Small tributary of Río Negro, at border with Venezuela, Tiriquin, Guainia Department, southern Colombia, 2.321N, 67.202W, elevation 88 meters.
Původní popis
Huber, J. H. 2025. Short description of Fluviphylax rubens n. sp., a new so-called lampeye Cyprinodontiformes from Colombia with exceptionally few dorsal-fin rays. Cybium v. 48 (no. 4): [1-5].
Použitá literatura
Fricke, R., Eschmeyer, W. N. & Van der Laan, R. (eds). 2025. Eschmeyer's catalog of fishes: Genera, species, references. World Wide Web.