Alvania glabra
Alvania glabra is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Rissoidae.[1] DescriptionThe length of the shell attains 3.17 mm. (Original description) The white shell is smooth. It contains four whorls. They show on the right side a sculptured line. [2] DistributionThis species occurs in the Plymouth Sound, Great Britain. References
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