Cyclostrema tortuganum

Cyclostrema tortuganum, common name the Tortugas cyclostreme, is a species of sea snail, a marine gastropod mollusc in the family Liotiidae.

Description
The size of the shell varies between 4 mm and 10 mm.

Distribution
This species occurs off in the Gulf of Mexico (East Florida, Cuba), the West Indies (the Dry Tortugas, Virgin Islands: St. Croix), the Caribbean Sea (Colombia, Venezuela) and the Atlantic Ocean (Bahamas, Brazil).