Conus gradatus
Conus gradatus, common name the graduated cone, is a species of sea snail, a marine gastropod mollusk in the family Conidae, the cone snails, cone shells or cones.
These snails are predatory and venomous. They are capable of stinging humans.
The subspecies Conus gradatus thaanumi Schwengel, 1955i s a synonym of Conus recurvus Broderip, 1833