Liotiidae

Liotiidae
Liotia echinacantha shell
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Clade:	Vetigastropoda
Superfamily:	Trochoidea
Family:	Liotiidae Gray, 1850
Synonyms
Cyclostrematidae P. Fischer, 1885

Cyclostrematidae P. Fischer, 1885

Liotiidae is a family of small sea snails, marine gastropod mollusks in the clade Vetigastropoda (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005).

The head of the animal is proboscidiform. The epipodial line has a pair of conical lobes and three pairs of cirri.

The white shell has a turbiniform or discoidal shape. It shows longitudinal ribs or is clathrate. The shell shows a fine lamellar sculpture. The circular aperture is feebly nacreous. The thick peristome is continuous and shows a callous varix. The multispiral operculum is hispid, corneous and has a soft, calcareous outer layer (intritacalx) formed of pearly beads that are disposed spirally.

The family Liotiidae belongs to the superfamily Turbinoidea, according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005).

This family consists of the three following subfamilies (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005):

Liotiidae was moved to the redefined superfamily Trochoidea according to Williams et al. (2008).

Genera in this family include:

subfamily Liotiinae

subfamily † Brochidiinae

subfamily † Dichostasiinae

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Wikipedia