Calliostoma adspersum, common name the spotted Brazilian top shell, is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae.[1]
| Calliostoma adspersum | |
|---|---|
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| Apertural view of a shell of Calliostoma adspersum | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Vetigastropoda |
| Order: | Trochida |
| Superfamily: | Trochoidea |
| Family: | Calliostomatidae |
| Subfamily: | Calliostomatinae |
| Genus: | Calliostoma |
| Species: | C. adspersum
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| Binomial name | |
| Calliostoma adspersum (Philippi, 1851)
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| Synonyms | |
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Description
editThe length of the shell varies between 16 mm and 28 mm. The conical shell is imperforate, whitish-gray, flammulated with rufous, and encircled by delicate granulate threads. The plane whorls are angulated with a sharp carina a little above the sutures, the last one biangulate with a second carina. The sculpture of the upper surface consists of five, fine thread-like or hair-like granulate spirals, the last forming the sharp carina over the suture. There are in the interstices finer granulose lines. The base of the shell is a little convex with 9 to 10 concentric, little elevated smooth lirae, nearly as broad as their interstices. The aperture is rhomboidal with rounded angles. The oblique columella is cylindrical and subdentate at its base, bounded by a pit at its insertion.[2]
Distribution
editThis marine species occurs from Colombia to Southern Brazil.
References
edit- ^ Rosenberg, G. (2012). Calliostoma adspersum (Philippi, 1851). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=532504 on 2012-12-07
- ^ Tryon (1889), Manual of Conchology XI, Academy of Natural Sciences, Philadelphia
External links
edit
- Biodiversity Heritage Library (2 publications)
- Encyclopedia of Life
- USNM Invertebrate Zoology Mollusca Collection
- ITIS
- World Register of Marine Species
- "Calliostoma adspersum". Gastropods.com. Retrieved 15 January 2019.