Alvania chilensis

Alvania chilensis
Shell of Alvania chilensis (holotype)
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. chilensis
Binomial name
†Alvania chilensis
(R. A. Philippi, 1887)
Synonyms

† Rissoa chilensis R. A. Philippi, 1887 ·

Alvania chilensis is an extinct species of minute sea snail, a marine gastropod mollusc or micromollusk in the family Rissoidae.[1]

Description

The length of the shell attains 1¾ mm.

The minute shell has a globose-conical shape and is imperforate. The shell contains 5½ whorls. The sculpture consists of many longitudinal ribs. The aperture is ovate-orbicular. The inner lip is incrassate.

Distribution

Fossils of this species were found in Tertiary strata in Chile.

References

  1. ^ MolluscaBase eds. (2024). MolluscaBase. Alvania chilensis (R. A. Philippi, 1887) †. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=880916 on 2024-02-10


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