Alvania nix is a species of sea snail, a marine gastropod mollusk in the family Rissoidae.
Description
The length of the shell varies between 2.4 mm and 4 mm. Distribution This marine species occurs off the Philippines.
References
Poppe G.T., Tagaro S.P. & Goto Y. (2018). New marine species from the Central Philippines. Visaya. 5(1): 91-135. page(s): 98, pl. 5 figs 4-5.