Conus sanguineus

It is irregularly marbled with chestnut and white, with equidistant chestnut revolving lines bearing white, granularly elevated spots.

[2] This marine species occurs off the Lesser Antilles and from the Bahamas to Venezuela Cone snails are typically not aggressive, so when humans are stung by them it's usually due to handling the snails.

Cone snails have a small dagger like tooth that injects their prey with a "rapid-acting venom".

Other symptoms include "fainting..., itching, loss of coordination, heart failure, difficulty speaking, difficulty breathing, and double vision.

[3] Some stings can cause more severe symptoms such as cyanosis, numbness in the limbs, paralysis, coma or even death.