The Redfin worm-eel (Scolecenchelys laticaudata, also known as the Pearlbelly snake-eel) is an eel in the family Ophichthidae (worm/snake eels). It was described by James Douglas Ogilby in 1897, originally under the genus Myropterura. It is a marine, tropical eel which is known from the Indo-Pacific and southeastern Atlantic Ocean, including the Red Sea, East and South Africa, Ducie Island, and Lord Howe Island. It dwells at a depth range of 1 to 26 metres (3.3 to 85.3 ft), and inhabits lagoons and reefs, forming colonies in sand sediments in confined areas. Males can reach a maximum total length of 35 centimetres (14 in).