Contramyzostoma sphaera Eeckhaut, Grygier & Deheyn, 1998

Eeckhaut, I. ; Grygier, M. J. ; and Deheyn, D. 1998. Myzostomes from Papua New Guinea, with related Indo-West Pacific distribution records and description of five new species. Bulletin of Marine Science, 62(3):841-886.