Ichthyapus insularis  Ichthyapus insularis is an eel in the family Ophichthidae ("snake eels"). It was described by John E. McCosker in 2004. It is a tropical saltwater eel found only around Ascension Island in the southeastern Atlantic Ocean. It is known to dwell at a depth range of and lives among rocks and sand. Males can reach a total length of . The species epithet ""insularis"", meaning "island" in Latin, refers to Ascension Island, to which "I. insularis" seems to be endemic.