- Kingdom: Animalia
- Phylum: Arthropoda
- Subphylum: Crustacea
- Class: Maxillopoda
- Subclass: Thecostraca
- Infraclass: Cirripedia
- Superorder: Thoracica
- Order: Scalpelliformes
- Family: Scalpellidae
- Scientific name: Scalpellum scalpellum
- Norwegian: dverglanghals
Characteristics:
With the distinct shape of the carapace, this species can only be confused with Pollicipes pollicipes. The most obvious difference is the number of shell plates. S. scalpellum has 13 or sometimes 14 plates while P. pollicipes has more. The tail has transverse rows of small plates. The total body length may reach 4 cm.
Habitat:
This tiny barnacle is usually seen sitting in hydroids or rocks on current exposed locations deeper than 40 meters.
Distribution:
It is widespread in the eastern Atlantic Ocean as well as the Mediterranean. It can be found anywhere along the Norwegian coast.