Callechelys bilinearis

Callechelys bilinearis, the twostripe snake eel, is an eel in the family Ophichthidae (worm and snake eels). It was described by Robert H. Kanazawa in 1952. It is a marine, tropical eel which is known from the western and southeastern Atlantic Ocean, including Bermuda, the West Indies, Lesser Antilles, St. Helena Island and Ascension Island. It dwells at a depth range of 0 to 22 m, most often at around 0 to 5 m. Males can reach a maximum total length of 172.4 cm.

The species epithet "bilinearis", treated as an adjective, means "two-lined" in Latin, and refers to the pair of stripes along the length of the eel's body.