Conus daucus riosi is a subspecies of sea snail, a marine gastropod mollusk in the family Conidae, the cone snails and their allies.
Like all species within the genus Conus, these snails are predatory and venomous. They are capable of "stinging" humans, therefore live ones should be handled carefully or not at all.
The size of the shell varies between 24 mm and 50 mm.
This marine species occurs in the Gulf of Mexico; off the Bahamas and off Brasil.
