Alvania nonsculpta
| Alvania nonsculpta | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Littorinimorpha |
| Family: | Rissoidae |
| Genus: | Alvania |
| Species: | A. nonsculpta |
| Binomial name | |
| Alvania nonsculpta Hoenselaar & Goud, 1998 | |
Alvania nonsculpta is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Rissoidae. Its name is derived from the fact that it has a near complete lack of sculpture.[1]
Description
[edit]The length of the shell varies between 2.2 mm and 3 mm. The shell is conical and pear-shaped with an angulated protoconch. The teleconch has about 3 convex whorls, quickly increasing in width. Spiral ridges and axial ribs begin to appear at the boundary of the protoconch and teleconch, forming a square-like pattern. The axial ribs slowly fade on the first teleconch line as growth lines become more apparent.[1]
Distribution
[edit]This species occurs in the Atlantic Ocean off the Azores.[1] It was first described off of the island the Flores Island and found again off the island of Faial Island.[2] It was observed at a depth range of 165-200 meters.[1]
References
[edit]- 1 2 3 4 Alvania nonsculpta (Hoenselaar & Goud, 1998). Gofas, S. (2009). Alvania nonsculpta (Hoenselaar & Goud, 1998). In: Bouchet, P.; Gofas, S.; Rosenberg, G. World Marine Mollusca database. Accessed through the World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=141220 on 9 August 2010 .
- ↑ Hoffman, Leon; Freiwald, André (2021). "Bathyal Species in Rissoidae (Gastropoda) from Azorean Seamounts". Biodiversity Journal. 12 (4). doi:10.31396/Biodiv.Jour.2021.12.4.777.792.
External links
[edit]- Hoenselaar H.J. & Goud J. (1998). The Rissoidae of the CANCAP expeditions, I: the genus Alvania Risso, 1826 (Gastropoda, Prosobranchia). Basteria. 62(1-2): 69-115
- Gofas, S.; Le Renard, J.; Bouchet, P. (2001). Mollusca. in: Costello, M.J. et al. (eds), European Register of Marine Species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Patrimoines Naturels. 50: 180-213