Microcephalophis gracilis ( Shaw, 1802 )

Rasmussen, Arne Redsted, Sanders, Kate Laura, Guinea, Michael L. & Amey, Andrew P., 2014, Sea snakes in Australian waters (Serpentes: subfamilies Hydrophiinae and Laticaudinae) - a review with an updated identification key, Zootaxa 3869 (4), pp. 351-371 : 355

Microcephalophis gracilis ( Shaw, 1802) .

M. gracilis is mentioned by M. A. Smith (1926) as occurring in Australia based on one specimen at the Australian Museum in Sydney (AMR6719). Cogger (1975) regarded this specimen as of doubtful provenance, but mentioned another from the Gulf of Papua (MCR142375), indicating M. gracilis does occur in Australian waters. The specimens mentioned as M. gracilis at the Museum Victoria, Melbourne turned out to be H. elegans (examined by ARR). Ineich and Rasmussen (1997) could not confirm M. gracilis in New Caledonian waters as the specimens identified by Gail and Rageau (1958) turned out to be H. coggeri . We have found no evidence to include this species in the checklist, but based on the specimen from Gulf of Papua we include it in the possible list.