The large-eye conger[1] (Ariosoma marginatum) is an eel in the family Congridae (conger/garden eels).[2] It was described by Léon Vaillant and Henri Émile Sauvage in 1875, originally under the genus Congrogadus.[3] It is a tropical, marine eel which is known from the northwestern and eastern central Pacific Ocean, including Hawaii and the Ladd Seamount. It typically dwells at a depth range of 2–420 metres, and leads a benthic, nocturnal lifestyle, burrowing into sand. Males can reach a maximum total length of 38 centimetres.[2]