- Kingdom: Animalia
- Phylum: Mollusca
- Class: Gastropoda
- Subclass: Heterobranchia
- Order: Gymnosomata
- Norwegian: skalløse vingesnegler
Characteristics:
Sea angels, also called cliones, are pelagic sea slugs. The traditional snail foot has developed into wing-like appendages. Most species are transparent and very small. The common clione is one of the largest, reaching a total length of 5 cm.
Taxonomy:
There are six families of sea angels.