Alvania ogasawarana

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Alvania ogasawarana
Alvania ogasawarana 001.jpg
Shell of Alvania ogasawarana (specimen at the Natural History Museum, Rotterdam)
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Littorinimorpha
Superfamily: Rissooidea
Family: Rissoidae
Genus: Alvania
Species:
A. ogasawarana
Binomial name
Alvania ogasawarana
(Pilsbry, 1904)
Synonyms

Rissoa ogasawaranaPilsbry, 1904 (basionym)

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

Contents

Description

The length of the shell attains 2.7 mm, its diameter 1.2 mm.

(Original description) The ovate shell has a rather short, straightly conic spire. It is cream-white, with some indistinct brown spots below the suture.

The sculpture consists of rather small close longitudinal riblets, which on the body whorl do not pass below the periphery. These are crossed by about 11 spiral cords on the body whorl. There are about 5 or 5½ slightly convex whorls, the last one with a broad rounded but rather low varix a short distance behind the thin outer lip. The aperture is ovate and entire below. [2]

Distribution

This species occurs off Japan and the Philippines.

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References

  1. ↑ MolluscaBase eds. (2024). MolluscaBase. Alvania ogasawarana (Pilsbry, 1904). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=594825 on 2024-01-04
  2. ↑ Pilsbry, H. A. (1904). New Japanese marine Mollusca: Gastropoda. Proceedings of the Academy of Natural Sciences of Philadelphia. 56: 3-32 PD-icon.svg This article incorporates text from this source, which is in the public domain .
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