The Black-striped snake eel (Callechelys catostoma, also known commonly as the Dark band snake eel) is an eel in the family Ophichthidae (worm/snake eels). It was described by Johann Gottlob Theaenus Schneider and Johann Reinhold Forster in 1801. It is a tropical, marine eel which is known from the Indo-Pacific, including the Red Sea, East Africa, the Society Islands, the Ryukyu Islands, and Lord Howe Island. It dwells at a depth range of 1-32 metres, and inhabits reefs. It burrows into loose gravel and sand. Males can reach a maximum total length of 85 centimetres.