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Although these sea slugs live on the open ocean, they sometimes accidentally wash up onto the shore, so they may be found on beaches. [10] In April 2022, specimens were found in the Gulf of Mexico along the Texas coast. [19] On August 31, 2023, blue sea slugs were reported to be found along Karon Beach, Phuket, Thailand. [20] [21]
Pteraeolidia ianthina is a sea slug, an aeolid nudibranch in the family Facelinidae. [ 2 ] [ 3 ] It is known as a blue dragon , [ 4 ] a name it shares with Glaucus atlanticus and Glaucus marginatus .
Glaucus is a genus of small blue pelagic sea slugs.They are aeolid nudibranchs, [1] ranging in size from 20 to 40 mm (0.79 to 1.57 in). [2] They feed on colonial cnidarians such as Portuguese man o' wars, blue buttons, and purple sails.
A venomous sea creature probably isn't high on your must-see list when on a beach vacation. But that's exactly what happened to one San Antonio resident as she explored the Gulf Coast.
Glaucus marginatus is a species of small, floating, blue sea slug; a pelagic (open-ocean) aeolid nudibranch; a marine opisthobranch gastropod mollusc in the family Glaucidae. [ 1 ] [ 2 ] This species is closely related to Glaucus atlanticus , and is part of a species complex (Informal clade Marginatus) along with Glaucus bennettae , Glaucus ...
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] Unlike Velella , which prefers a passive diet, Porpita will hunt active crustaceans like crab and fish. [ 14 ]
The exact systematics of nudibranchs are a topic of recent revision. Traditionally, nudibranchs have been treated as the order Nudibranchia, located in the gastropod mollusc subclass Opisthobranchia (the marine slugs: which consisted of nudibranchs, sidegill slugs, bubble snails, algae sap-sucking sea slugs, and sea hares). [44]
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