| Calliostoma fragum | |
|---|---|
 | |
| Drawing with two views of a shell of Calliostoma fragum | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Vetigastropoda |
| Order: | Trochida |
| Superfamily: | Trochoidea |
| Family: | Calliostomatidae |
| Genus: | Calliostoma |
| Species: | C. fragum |
| Binomial name | |
| Calliostoma fragum | |
| Synonyms [2] | |
| |
Calliostoma fragum is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae. [2]
The height of the shell attains 8 mm. The subperforate shell has a conical shape. It is pale purplish-brown, painted with whitish stripes, with 4 distant series of granules. The eight granulate whorls have their basal margins prominent. The interstices are very delicately obliquely striate. The base is a little convex, sculptured with 8 flat subgranose concentric lirae, each one divided by a furrow into two parts, alternating with narrow elevated lines. The smooth aperture is rhomboidal. The columella is a little oblique, and subtruncate at its base. [3]
This marine species occurs off the Philippines.
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.
Calliostoma canaliculatum, common name the channeled topsnail, is a species of small sea snail with gills and an operculum, a marine gastropod mollusk in the family Calliostomatidae, the calliostoma top snails.
Calliostoma pellucidum is a species of medium-sized sea snail, a marine gastropod mollusc in the family Calliostomatidae, the calliostoma top snails.
Calliostoma punctulatum, the spotted tiger shell, is a species of medium-sized sea snail, a marine gastropod mollusc in the family Calliostomatidae, the calliostoma top snails.
Calliostoma allporti, common name the Allport top shell, is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae.
Calliostoma columnarium, common name the cape pillar top shell, is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae.
Calliostoma comptum is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae.
Calliostoma euglyptum, common name the sculptured top shell, is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae.
Calliostoma legrandi is a species of small sea snail, a marine gastropod mollusk in the family Calliostomatidae, the Calliostoma top snails.
Calliostoma perfragile is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae.
Calliostoma simplex is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae.
Calliostoma tranquebaricum is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae.
Calliostoma unicum, common name Dall's unicum top shell, is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae.
Calliostoma yucatecanum, common name the depressed top shell, is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae.
Astele armillata is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae.
Calliostoma adspersum, common name the spotted Brazilian top shell, is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae.
Calliostoma coppingeri is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae.
Calliostoma eximium is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae.
Calliostoma fonki is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae.
Calthalotia fragum, common name the spotted strawberry top shell or the comtesse's top shell, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.