Alvania chilensis is an extinct species of minute sea snail, a marine gastropod mollusc or micromollusk in the family Rissoidae.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
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
External links Philippi, R. A. (1887). Die Tertiären und Quartären Versteinerungen Chiles / Los fósiles Terciarios i Cuatarios de Chile. iv + 266 pp. Leipzig: Brockhaus