Calliostoma fragum
Calliostoma fragum is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae.[2]
| Calliostoma fragum | |
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| Drawing with two views of a shell of Calliostoma fragum | |
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| (unranked): | clade Vetigastropoda |
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| Species: | C. fragum |
| Binomial name | |
| Calliostoma fragum | |
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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 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]
Distribution
This marine species occurs off the Philippines.
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References
- Phiippi., Zeitschr. f Mal. 1848, p. 106
- Calliostoma fragum (Philippi, 1848). Retrieved through: World Register of Marine Species.
- Tryon (1889), Manual of Conchology XI, Academy of Natural Sciences, Philadelphia
External links
- "Calliostoma fragum". Gastropods.com. Retrieved 15 January 2019.
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