Alvania crassistriata is an extinct species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Rissoidae.[1]
| Alvania crassistriata | |
|---|---|
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| Shell of Alvania crassistriata (holotype) | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Littorinimorpha |
| Superfamily: | Rissooidea |
| Family: | Rissoidae |
| Genus: | Alvania |
| Species: | †A. crassistriata
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| Binomial name | |
| †Alvania crassistriata (S. V. Wood, 1848)
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| Synonyms | |
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Description
editThe length of the shell attains 2 mm, its diameter 1.2 mm.
(Original description) The shell is turriculate and elevated, thick and strong. It contains five or six convex whorls. The suture is deep and distinct. The shell is externally ornamented with 10-12 vertical and obtuse ribs and is transversely striated. The striae or ridges are few and elevated, carried over the ribs. The aperture is subcircular, with a thickened and marginate outer lip, denticulated within the aperture.
Distribution
editFossils were found in the salt mines of Wieliczka, Poland.
References
edit- ^ MolluscaBase eds. (2024). MolluscaBase. Alvania crassistriata (S. V. Wood, 1848) †. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1729132 on 2024-02-11
External links
edit- Wood, S. V. (1848). A Monograph of the Crag Mollusca or, descriptions of shells from the middle and upper tertiaries of the east of England. Part 1. Univalves. Monograph of the Palaeontographical Society of London. 1, xii + 1–208, 21: pls
This article incorporates text from this source, which is in the public domain.
