Author: Domínguez-Domínguez, Bernal-Zuñiga & Piller, 2016
Comments: The type locality where the this species occurs is characterized by high seasonal changes in water clarity and volume, from a turbid and deep high flow running water in the rainy season to clear and low flow water other times of the year, sometimes reduced to a few shallow pools in the dry season. Its bottom is composed mainly of mud and gravel, and water plants are only evident in the stream bed. Other fishes present in the area include <i>Xenotoca melanosoma</i> (now extirpated), <i>Ilyodon whitei</i>, <i>Poecilia butleri</i>, <i>Allodontichthys tamazulae</i>, <i>Astyanax anaeus</i>, <i>Cyprinus carpio</i> and <i>Oreochromis</i> sp. (Ref. 107630).