The only known troglobitic (exclusively cave-dwelling) member of the order Gymnotiformes, E. vicentespelaea is found in the São Vicente I and São Vicente II caves near São Domingos, in the central Brazilian state of Goiás.
•
Native to the São Domingos karst area in central Brazil, it is the only known South American knifefish to exclusively inhabit a subterranean habitat.