Cerithidea

Cerithidea
A live Cerithidea quoyii
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
(unranked):	clade Caenogastropoda clade Sorbeoconcha
Superfamily:	Cerithioidea
Family:	Potamididae
Genus:	Cerithidea Swainson, 1840

clade Sorbeoconcha

Cerithidea is a genus of medium-sized sea snails or mud snails, marine gastropod mollusks in the family Potamididae, the horn snails.

There used to be three subgenera in the genus Cerithidea: subgenus Cerithea, subgenus Cerithideopsis and subgenus Cerithideopsilla. These have been brought to the status of genus.

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Wikipedia