Animal Database

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Animal Database
Animal Database
Glaucilla marginata
5445436990 ecbe6bef0c z
Range Pacific Ocean
Scientific Classification
Kingdom Animalia
Phylum Mollusca
Class Gastropoda
Order (unranked):
clade Heterobranchia
clade Euthyneura
clade Nudipleura
clade Nudibranchia
clade Dexiarchia
clade Cladobranchia
informal group Aeolidida
Family Glaucidae
Genus Glaucus
Species G. marginatus

The Glaucus marginatus is a species of small, floating, blue sea slug; a pelagic aolid nudibranch; a marine opisthobranch gastropod mollusk in the family Glaucidae.


This species is pelagic, and can be found in the Pacific Ocean.


These small nudibranchs float upside down on the surface tension in temperate and tropical seas. They eat colonial cnidarians such as the portuguese man o' war.


This nudibranch is dark blue, and in many ways it resembles a smaller version of the blue glaucus. However, in this species the cerata (saw teeth on the skin) are arranged in a single row in each arch.