Invasion

Invasion Description

None

Geographic Extent

Trondheim/Norway/Trondheim Fjord, & 'entire Norwegian Coast' ( Kåre Telnes, Marine Fauna Gallery of Norway 2008, http://www.seawater.no/fauna/Mosdyr/membran.htm); Kaldbak, Faroe Islands, Denmark/Atlantic Ocean (Schwanigner 2008); Norway/Hardangerfjord (Brattegard 1966); Vardo, Finnmark/Norway/Barents Sea (Kluge 1975)

Brattegard, T. 1966. The natural history of the Hardangerfjord 7. Horizontal distribution of the fauna of rocky shores. Sarsia. 1966; No. 22 1-54.