Calliostoma fonki

Calliostoma fonki is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae.^[2]

Calliostoma fonki
Drawing with an apertural view of a shell of Calliostoma fonki
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Vetigastropoda
Order:	Trochida
Family:	Calliostomatidae
Subfamily:	Calliostomatinae
Genus:	Calliostoma
Species:	C. fonki
Binomial name
Calliostoma fonki (Philippi, 1860)[1]
Synonyms
Calliostoma fonkii (Philippi, 1860) (incorrect subsequent spelling) Trochus fonki Philippi, 1860 (original combination)

Description

The size of the shell varies between 11 mm and 17 mm. The imperforate, thin shell has a conical shape. it is pale rose colored. The upper whorls are plane, and tricingulate. The upper cingulus is beaded, the second and the third are smooth. The body whorl is obtusely angled and encircled by 5 cinguli. The base of the shell is a little convex, with 6 cinguli. The aperture is quadrangular. The columella is a little oblique, cylindrical, scarcely truncate, but sensibly passing into the base.^[3]

Distribution

This species occurs in the Pacific Ocean between El Salvador and Peru (not in the Galapagos Islands)