Gastropoda - Sorbeoconcha - Cerithiidae

Alternative spelling: Bittium (Bittiolum)

Parent taxon: Cerithiadae according to J. A. Todd 2001

Sister taxa: Alabininae, Argyropeza, Ataxocerithium, Bellatara, Bezanconia, Bittiinae, Cerithidium, Cerithiinae, Cerithinella, Cestumcerithium, Exelissa, Fastigiella, Hemicerithium, Liocerithium, Nudivagus, Occidentocerithium, Orthochetus, Portoricia, Prismacerithium, Pseudoaluco, Royella, Schroederium, Serratocerithium, Sundabittium, Taxonia, Zefallacia

Subtaxa: Bittiolum alternatum, Bittiolum varium

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Ecology: epifaunal grazer