Alvania herwigia is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Rissoidae.
Description
The length of the shell attains 1 mm.
Distribution
This species occurs in the Atlantic Ocean off Uruguay.
References
- Castellanos, Z. J. A. de & Fernández, D. E. (1974). Nuevas Rissoa Freminuille 1813 del Atlántico sudoccidental (Mollusca Rissoacea). Neotrópica. 20 (63): 153âÂÂ155.
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