Fiona pinnata is found in all seas worldwide, on many different kinds of floating objects.
The type locality is the island location of Sitka, Alaska مزید دیکھیں

The body is elongated and oblong-elliptical. The length of the body is usually about 20 mm, but the largest reported size of the body is 50 … مزید دیکھیں

• Bayer, F. M. (1963). "Observations on pelagic molluscs associated with the siphonophores Velella and Physalia". Bulletin of Marine Science of the Gulf and Caribbean, University of Miami 13 (3): 454-466.
• Beeman, … مزید دیکھیں

A 2016 study showed that this species is a species complex, but did not name the segregate species.
Various names have been created for this species. مزید دیکھیں

This nudibranch is pelagic in a similar way to the nudibranch Glaucus atlanticus. Unlike some other pelagic animals, this species cannot swim or even float in water by itself, thus … مزید دیکھیں

• Pelagic snails: the biology of holoplanktonic gastropod mollusks By Carol M. Lalli, Ronald W. Gilmer. via Google books مزید دیکھیں