Monilea smithi

Monilea smithi is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.^[1]

Monilea smithi
Drawing with two images of a shell of Monilea smithi
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Vetigastropoda
Order:	Trochida
Superfamily:	Trochoidea
Family:	Trochidae
Genus:	Monilea
Species:	M. smithi
Binomial name
Monilea smithi (Wood, 1828)
Synonyms
Euchelus smithi Dunker, R.W., 1882 Trochus smithi Wood, 1828

Description

The height of the shell attains 15 mm, its diameter 20 mm. The umbilicate shell has a globose-conic shape. The 6 to 7 whorls are encircled by numerous unequal, grained, partly pearly riblets. The convex base is sculptured with smoother riblets, their interstices cancellated. The umbilicus is deeply channelled. The aperture is rounded-quadrate. The columella is deeply sinuous, callous, terminating in an acute denticle. The outer lip is sulcate within, subcinereus or ashen-reddish, with scattered obscure spots on the upper whorls. The lip is thickened in adults and is silvery-pearly.^[2]

Distribution

This marine species occurs off Japan.