Scolecenchelys cookei is an eel in the family Ophichthidae (worm/snake eels).[1] It was described by Henry Weed Fowler in 1928, originally under the genus Muraenichthys.[2] It is a marine, temperate water-dwelling eel which is known from Hawaii, in the eastern central Pacific Ocean. It dwells at a depth range of 3mto5mm (10feetto16feetm), and inhabits pockets of sand in coral reefs. Males can reach a maximum total length of 15.5cm (06.1inches).[1]