| Chrysostoma | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Vetigastropoda |
| Order: | Trochida |
| Superfamily: | Trochoidea |
| Family: | Trochidae |
| Genus: | Chrysostoma Swainson, 1840 |
| Type species | |
| Turbo nicobaricus Gmelin, 1791 | |
Chrysostoma is a genus of sea snails, marine gastropod mollusks in the family Trochidae, the top snails. [1] [2]
The solid, thick shell has a globose shape. The spire is very short . The aperture is rounded. The parietal wall bears a heavy callus which wholly or almost covers the narrow umbilicus. [3]
Species within the genus Chrysostoma include: [1]
The Trochidae, common name top-snails or top-shells, are a taxonomic family of very small to large sea snails, marine gastropod molluscs in the clade Vetigastropoda.
Thiaridae, common name thiarids or trumpet snails, is a family of tropical freshwater snails with an operculum, aquatic gastropod mollusks in the superfamily Cerithioidea.
Cymbiola is a genus of large predatory sea snail, a marine gastropod mollusk in the family Volutidae, the volutes.
Astraea is a genus of medium to large sea snails, marine gastropod mollusks in the family Turbinidae, the turban snails.
Austrocochlea is a genus of medium-sized sea snails, marine gastropod molluscs in the family Trochidae, the top snails, also known as top shells.
Turrisipho is a genus of sea snails, marine gastropod mollusks in the family Buccinidae, the true whelks.
Skenea is a genus of small to minute sea snails, marine gastropod mollusks in the family Skeneidae.
Strigatella is a genus of sea snails, marine gastropod mollusks in the family Mitridae.
Drupa is a genus of sea snails, marine gastropod mollusks in the family Muricidae, the murex snails or rock snails.
Semiricinula is a genus of sea snails, marine gastropod mollusks in the family Muricidae, the murex snails or rock snails.
Vokesimurex is a genus of sea snails, marine gastropod mollusks in the family Muricidae, the murex snails or rock snails.
Eburna is a genus of sea snails, marine gastropod mollusks in the family Ancillariidae.
Prothalotia is a genus of sea snails, marine gastropod mollusks in the family Trochidae, the top snails.
Phasianotrochus is a genus of sea snails. They are marine gastropod molluscs in the family Trochidae, the top snails.
Krachia is a genus of minute sea snails, marine gastropod molluscs in the family Cerithiopsidae.
Uvanilla is a genus of sea snails, marine gastropod mollusks in the family Turbinidae, the turban snails.
Bivetopsia is a genus of sea snails, marine gastropod mollusks in the family Cancellariidae, the nutmeg snails.
Eurytrochus is a genus of sea snails, marine gastropod mollusks in the subfamily Trochinae of the family Trochidae, the top snails.
Chrysostoma paradoxum, common name the orange-mouthed top shell, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.
Austrocochlea zeus, common name the dory austrocochlea, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.