Calliotrochus

Calliotrochus is a genus of sea snails, marine gastropod mollusks in the subfamily Stomatellinae of the family Trochidae, the top snails.^[1]

Calliotrochus
Drawing with three views of a shell of Calliotrochus marmoreus
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Vetigastropoda
Order:	Trochida
Superfamily:	Trochoidea
Family:	Trochidae
Subfamily:	Stomatellinae
Genus:	Calliotrochus P. Fischer, 1879
Type species
Turbo phasianellus Deshayes, G.P., 1863
Synonyms[1]
Gibbula (Calliotrochus) Fischer, 1880 Trochinella Iredale, 1937

Description

This genus consists of thin, small, shining globose species with a turbinate shape. It has rounded, smooth or spirally striate, convex whorls. The aperture is rounded. The outer lip and columella are simple, thin and arcuate. The umbilicus is narrow.^[2]

Species

Species within the genus Calliotrochus include:^[1]

• Calliotrochus marmoreus (Pease, 1861)

The following species were brought into synonymy:^[1]

• Calliotrochus excellens Iredale, 1937: synonym of Calliotrochus marmoreus (Pease, 1861)
• Calliotrochus legrandi May, W.L. 1921: synonym of Minopa legrandi (Petterd, 1879)
• Calliotrochus normalis Iredale, 1937: synonym of Calliotrochus marmoreus (Pease, 1861)
• Calliotrochus symbolicus Iredale, 1937: synonym of Calliotrochus marmoreus (Pease, 1861)
• Calliotrochus tasmanicus May, W.L. 1923: synonym of Nanula tasmanica (Petterd, 1879)