• Norwegian: -


Many of these nudibranchs have a teardrop-shaped, flattened body. In some superfamilies cerata are common, others often have longitudinal ridges on the mantle.


The infraorder Euarminida is represented by only a few, relatively rare species in Norwegian waters. These nudibranchs were formerly considered members of a suborder Arminina. The taxonomy of nudibranchs is currently under investigation, based on recent genetic studies.