Vexillum tusum

Vexillum tusum, common name the bruised mitre, is a species of small sea snail, marine gastropod mollusk in the family Costellariidae, the ribbed miters.^[1]

Vexillum tusum
Vexillum tusum (specimen at the Smithsonian Institution)
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Neogastropoda
Superfamily:	Turbinelloidea
Family:	Costellariidae
Genus:	Vexillum
Species:	V. tusum
Binomial name
Vexillum tusum (Reeve, 1845)
Synonyms
Mitra alveolus Reeve, 1845 Mitra olgae Cate, J. 1963 Mitra tusa Reeve, 1845 (original combination) Pusia olgae (L.A. Reeve, 1845) Pusia tusum (Reeve, 1845) Vexillum (Pusia) tusum (Reeve, 1845) Vexillum alveolus (Reeve, 1845) ·

Description

The length of the shell attains 8 mm.

(Original description) The shell is ovate. The sutures of the spire are deeply impressed. The shell is longitudinally finely ribbed and transversely impressly striated. The upper part of the whorls is white, ornamented with large squarish brown spots. The lower part is entirely brown. The columella is four-plaited. ^[2]

Distribution

This marine species occurs off Mozambique, Guam and in French Polynesia; also off the Coral Sea islands and Australia (Queensland).