Echelus pachyrhynchus is an eel in the family Ophichthidae (worm/snake eels). It was described by Léon Vaillant in 1888.[1] It is a marine, deep water-dwelling eel which is known from the eastern Atlantic Ocean, including Morocco, Angola, Cape Verde, and Namibia. It dwells at a depth range of, and inhabits burrows in mud or sand on the continental shelf. Males can reach a maximum total length of .
Echelus pachyrhynchus feeds primarily on bony fish.[2]