Calliostoma is a genus of small to medium-sized sea snails with gills and an operculum, marine gastropod molluscs within the family Calliostomatidae, the Calliostoma top snails. Previously this genus was placed within the family Trochidae. Calliostoma is the type genus of the family Calliostomatidae.
Trochoidea is a superfamily of small to very large vetigastropod sea snails with gills and an operculum. Species within this superfamily have nacre as the inner shell layer. The families within this superfamily include the Trochidae, the top snails. This superfamily is the largest vetigastropodan superfamily, containing more than 2,000 species.
Otukaia is a genus of medium-sized sea snails, marine gastropod molluscs in the family Calliostomatidae, the top shells. Otukaia has long been considered a subgenus of Calliostoma and is still treated as such by many authorities.
Calliostoma galea is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae.
Otukaia kiheiziebisu is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae.
Calliostoma muriellae is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae.
Calliostoma otukai is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae.
Calliostoma sugitanii is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae.
Calliostomatinae is a subfamily of gastropods, belonging to the family Calliostomatidae.
Otukaia ikukoae is a deepwater sea snail, a marine gastropod mollusc in the family Calliostomatidae, the calliostoma top snails.
Liostomia beringensis is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.
Calliostoma titanium is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae.
Maurea is a genus of sea snails, marine gastropod mollusks, in the family Calliostomatidae within the superfamily Trochoidea, the top snails, turban snails and their allies.
Calliostoma insigne is a species of sea snail, a marine gastropod mollusk, in the family Calliostomatidae within the superfamily Trochoidea, the top snails, turban snails and their allies.
Calliostoma pillsburyae is a species of sea snail, a marine gastropod mollusk, in the family Calliostomatidae within the superfamily Trochoidea, the top snails, turban snails and their allies.
Fautor boucheti is a species of sea snail, a marine gastropod mollusk, in the family Calliostomatidae within the superfamily Trochoidea, the top snails, turban snails and their allies.
Fautor chesterfieldensis is a species of sea snail, a marine gastropod mollusk, in the family Calliostomatidae within the superfamily Trochoidea, the top snails, turban snails and their allies.
Maurea delli is a species of sea snail, a marine gastropod mollusk, in the family Calliostomatidae within the superfamily Trochoidea, the top snails, turban snails and their allies.
Venustatrochus malaita is a species of sea snail, a marine gastropod mollusk, in the family Calliostomatidae within the superfamily Trochoidea, the top snails, turban snails and their allies.
