SulcosinusSulcosinus is a genus of large sea snails or true whelks, marine gastropod molluscs in the superfamily Buccinoidea.SpeciesAccording to the World Register of Marine Species, the following species with valid names are included within the genus Sulcosinus: Sulcosinus taphrium Sulcosinus orientalis Golikov & Gulbin, 1977: synonym of Clinopegma borealis Tiba, 1969