Crosseola cancellata

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Crosseola cancellata is a tiny sea snail in the family Conradiidae. It lives in the waters off southern Australia, including South Australia, Tasmania, and Victoria.

Description
The shell is white, very small (about 1.5 mm across), and has three whorls. Its surface shows a cancellated (lattice-like) pattern created by close spiral ribs and fine oblique lines. The apex is smooth. The opening is circular and clearly channelled above and below. Behind the inner lip there is a narrow groove forming a small hollow (a false umbilicus), then a rounded spiral rib, and then a broad, regularly grooved area on the base.

Taxonomy
This species was first described in 1878 as Crossea cancellata by Tenison-Woods and is now placed in the genus Crosseola.