See text Alvania is a genus of minute sea snails, marine gastropod mollusks or micromollusks in the family Rissoidae.

[3] The genus Alvinia has been synonymized with Alvania, until a consistent phylogenetic scheme emerges for the whole group.

Their general shape is ovate-conical, reticulated with axial and spirals elements.

However, the genus Alvania as currently used has a very broad taxonomic extension, and these species may very well end up in different genera when a robust phylogeny becomes available.

[2] These marine species can be found worldwide (except in the antarctic and subantarctic regions).