Blue Dragon (Glaucus atlanticus). Small slug that measures only about 2 cm and is generally associated with the Portuguese man of war (Physalia physalis), although it also usually appears in intertidal pools. Marine invertebrates of the Canary Islands, Tenerife.

glaucus atlanticus adult float high angle view overview tenerife temperate sea low tide underneath shot strand september macaronesia water surface pelagos neuston nobody glaucus blue glaucus glaucus atlanticus adults floating high angle shot overhead shots overhead shot overhead sight overhead sights overhead view overhead views overviews global sight global sights full length teneriffe temperate seas temperate ocean temperate oceans low tides ebb ventral face underneath image underneath sight underneath views underneath sights underneath images ventral faces underneath photo underneath photos underneath shots underneath view strands shores shore water surfaces watersurface watersurfaces with nobody sea swallow glaucus atlanticus blue dragon glaucus atlanticus stage of development individual shot canary islands archipelago spain european union europe sea marine area area tide meteorological phenomenon atmosphere north atlantic ocean atlantic ocean world sea and ocean water matter matter substance aquatic species species particularity species glaucidae nudibranchia opisthobranchia heterobranchia gastropoda conchifera mollusca inarticulata protostomia coelomata bilateria metazoa opisthokonta eukaryota nudibranch sea slug gastropod mollusk wild animal