Blue Dragon (Glaucus atlanticus) hanging. 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 person carry to high angle view overview macrophotography tenerife temperate sea cut out finger underneath shot september macaronesia water surface pelagos neuston glaucus blue glaucus glaucus atlanticus adults human beings persons human being human presence human presences human humans transport to hold carried carrying held holding transporting transported transportation high angle shot overhead shots overhead shot overhead sight overhead sights overhead view overhead views overviews global sight global sights full length macro photos macrophotographies very close up macro photo photomacrography photomacrographies teneriffe temperate seas temperate ocean temperate oceans silhoettable fingers ventral face underneath image underneath sight underneath views underneath sights underneath images ventral faces underneath photo underneath photos underneath shots underneath view water surfaces watersurface watersurfaces sea swallow glaucus atlanticus blue dragon glaucus atlanticus stage of development individual shot canary islands archipelago spain european union europe sea marine area area morphology zoology morphology organism 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