Nassarius albescens
Nassarius albescens, common name : the whitish nassa, is a species of sea snail, a marine gastropod mollusc in the family Nassariidae, the Nassa mud snails or dog whelks.
The subspecies : Nassarius albescens gemmuliferus is a synonym of Nassarius gemmuliferus albescens var. fenestratus ; Nassa fenestrata ; Nassa fenestrata Marratt, 1877; Nassa gemmulifera A. Adams, 1852; Nassa isabellei Reeve, 1853; Nassarius albescens gemmuliferus ; Nassarius fenestratus ; Nassarius fenestratus var. gestroi Bisacchi, 1930; Nassarius fenestratus'' ;