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.

References

Higo, S., Callomon, P. & Goto, Y. (1999). Catalogue and bibliography of the marine shell-bearing Mollusca of Japan. Osaka. : Elle Scientific Publications. 749 pp

External links