Calliostoma fragum
| Calliostoma fragum | |
|---|---|
 | |
| Drawing with two views of a shell of Calliostoma fragum | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| (unranked): | clade Vetigastropoda |
| Superfamily: | Trochoidea |
| Family: | Calliostomatidae |
| Subfamily: | Calliostomatinae |
| Genus: | Calliostoma |
| Species: | C. fragum |
| Binomial name | |
| Calliostoma fragum (Philippi, 1848) [1] | |
| Synonyms[2] | |
| |
Calliostoma fragum is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae.[2]
Description
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 obiquely 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]
Distribution
This marine species occurs off the Philippines.
References
- ↑ Phiippi., Zeitschr. f Mal. 1848, p. 106
- ↑ 2.0 2.1 Calliostoma fragum (Philippi, 1848). Retrieved through: World Register of Marine Species on 22 April 2010.
- ↑ Tryon (1889), Manual of Conchology XI, Academy of Natural Sciences, Philadelphia