Alvania euphrosine
Alvania euphrosine is an extinct species of minute sea snail, a marine gastropod mollusc or micromollusk in the family Rissoidae.[1] DescriptionThe length of the shell attains 3.4 mm, its diameter 2 mm.
DistributionFossils of this marine species were found in Pliocene strata off Siena, Italy. References
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