Vexillum callosum

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

Vexillum callosum
Drawing of a shell of Vexillum callosum
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Neogastropoda
Superfamily:	Turbinelloidea
Family:	Costellariidae
Genus:	Vexillum
Species:	V. callosum
Binomial name
Vexillum callosum (Reeve, 1845)
Synonyms
Mitra callosa Reeve, 1845 Vexillum (Costellaria) callosum (Reeve, 1845)

Description

The length of the shell attains 22.89 mm.

(Original description) The shell is oblong-ovate. The spire is rather short. The sutures are somewhat impressed. The shell is smooth, ridged towards the base. Its colour is leaden brown, variegated here and there with brown dots. The brown columella is five-plaited, armed at the upper part with a white callosity. The plaits are white. The outer lip is slightly flexuous.^[2]

The shell is smooth, striate towards the base. It is leaden brown, variegated, spotted or obscurely banded with brown.^[3]

Distribution

This marine species occurs off the Philippines.