Trigonaphera vinnulum is a species of sea snail, a marine gastropod mollusc in the family Cancellariidae, the nutmeg snails.MolluscaBase eds. (2022). MolluscaBase. Trigonaphera vinnulum (Iredale, 1925). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1255595 on 2022-10-13 References