Alvania argentea is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Rissoidae.[1]

Alvania argentea
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Littorinimorpha
Superfamily: Rissooidea
Family: Rissoidae
Genus: Alvania
Species:
A. argentea
Binomial name
Alvania argentea
(Monterosato, 1877)
Synonyms
  • Rissoa (Alvania) argentea G. B. Sowerby III, 1892 · alternate representation (basionym)
  • Rissoa argentea G. B. Sowerby III, 1892 (Alvania accepted as full genus)

Description

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The length of the shell attains 3 mm to 4.7 mm.

(Original description) The acuminate-ovate shell is imperforate. The shell contains six convex whorls. It is a beautiful little shining silvery shell, not regularly latticed like Alvania fenestrata, but with the spiral ridges much more prominent than the longitudinal plaits, which are numerous and visible only on the upper half of the whorls. The body whorl is slightly inflated. The aperture is ovate. The columella is arcuate. [2]

Distribution

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This marine species occurs off Port Elizabeth, South Africa.

References

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