Alvania sacyi is an extinct species of minute sea snail, a marine gastropod mollusc or micromollusk in the family Rissoidae.MolluscaBase eds. (2024). MolluscaBase. Alvania sacyi Cossmann, 1921 †. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=881478 on 2024-02-01
Description The length of the shell attains 3 mm, its diameter 2.5 mm.
Distribution Fossils of this species were found in Oligocene strata in Aquitaine, France.
References
External links Cossmann, M. (1921). Essais de paléoconchologie comparée. Douzième livraison. Paris: (the author). 349 pp., plates A-D, 1-6