Alvania chilensis
Shell of Alvania chilensis (holotype)
Scientific 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]

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.

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

• Philippi, R. A. (1887). Die Tertiären und Quartären Versteinerungen Chiles / Los fósiles Terciarios i Cuatarios de Chile. iv + 266 pp. Lepizig: Brockhaus This article incorporates text from this source, which is in the public domain.

This prehistoric gastropod article is a stub. You can help Wikipedia by expanding it.

• v
• t
• e