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Glaucus atlanticus is the blue sea slug shown here out of water on a beach, and thus collapsed; however, touching the animal directly with your skin can result in a painful sting, with symptoms similar to those caused by the Portuguese man o' war The slug in the water
In the North Pacific are Glaucus marginatus, Glaucus thompsoni and Glaucus mcfarlanei, with Glaucus marginatus also occurring in the Indian Ocean and the South Pacific. Also in the South Pacific is Glaucus bennettae. [4] [11] Glaucus atlanticus has some genetic differences in different parts of its range but is considered to be a single species ...
Glaucus atlanticus is a blue pelagic aeolid nudibranch. Individuals in this species can be dangerous for humans to handle; the cnidosacs of G. atlanticus often contain particularly powerful venomous stinging cells from one of its food species: the pelagic siphonophore known as the Portuguese Man o' War, Physalia physalis. [3]
The rare blue dragon sea slug, which is now washing up on Texas coasts, has a severely painful sting.
Don't let the beautiful color of the glaucus atlanticus, also known as the "blue dragon," fool you -- its sting is to be feared. Rare sighting of mesmerizing but threatening sea creature Skip to ...
The largest species of sea hare, the California black sea hare, Aplysia vaccaria can reach a length of 75 centimetres (30 in) and a weight of 14 kilograms (31 lb). [11] Most sea hares have several defenses; in addition to being naturally toxic, they can eject a foul ink or secrete a viscous slime to deter predators.
This is because it is a passive drifter, which means that it relies on water currents and wind to carry it through the ocean. It is preyed on by the sea slug Glaucus atlanticus (sea swallow or blue dragon), violet sea-snails of the genus Janthina, [12] and the other blue dragon, Glaucus marginatus. [13]
Stings usually cause severe pain to humans, lasting one to three hours. Red, whip-like welts appear on the skin that last two or three days after the sting. In some cases, the venom may travel to the lymph nodes and may cause symptoms that mimic an allergic reaction, including swelling of the larynx , airway blockage, cardiac distress and ...