Vexillum semicostatum

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

Vexillum semicostatum
Vexillum semicostatum
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Neogastropoda
Family:	Costellariidae
Genus:	Vexillum
Species:	V. semicostatum
Binomial name
Vexillum semicostatum (Anton, 1838)
Synonyms
Mitra semicostata Anton, 1838 Pusia semicostata (Anton, 1838) Pusia semicostatum (Anton, 1838)

Description

The shell size varies between 10 mm and 22 mm.

The shell is ovate. The whorls of the spire are obtusely plicately ribbed. The body whorl is smooth. The shell is chestnut-brown, the spire partially white. The columella is four-plaited. ^[2]

Distribution

This species occurs in the Red Sea, the Indian Ocean off the Mascarene Basin, Madagascar and in the Pacific Ocean off Queensland, Australia and Papua New Guinea.