[2] The Mexican blind brotula has a large, laterally compressed, scaleless head with no eyes, but several papillae and cavities which contain sensory organs.

[3][4] The Mexican blind brotula inhabits the cenotes (water-filled sink holes) and aquifers in the Yucatán Peninsula of Mexico, where the temperature is between 23 and 27 °C (73 and 81 °F) throughout the year.

[3] These are typically anchialine (connected to the sea), but the Mexican blind brotula is only known from the sections with fresh or brackish water.

[3] The main threat faced by this fish is from water pollution; the aquifers in which it lives are below inhabited areas with inadequate sanitary arrangements, so that coliform bacteria may leak in, and excess nitrates may be in wastewater.

[1] The generic name derives from the Greek typhlos meaning "blind" and the specific name honours the American ecologist, Arthur Sperry Pearse (1877-1956), who was the collector of the type specimen used by Carl Leavitt Hubbs to describe the species.