Calliostoma soyoae

Calliostoma soyoae, common name Soyo's top shell, is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae.

Some authors place this taxon in the subgenus Calliostoma (Tristichotrochus).

Description
The size of the shell varies between 10 mm and 25 mm.

Distribution
This marine species occurs off Japan and the Philippines.