Specimens from Ireland seem to be a different colour form or even a different species with a more transparent mantle. Feeds on sponges such as Halisarca dujardini and perhaps Dysidea fragilis . Cadlina is one of the few British nudibranchs which have direct development, with tiny juvenile slugs hatching from the eggs rather than veliger larvae. Cadlina laevis has a wide ranging distribution, it is known from eastern America, Greenland, Iceland and from Norway to Spain. Key Characteristics Flat oval body with small gills which retract into a pocket.
Defensive lemon glands around the edge of the mantle.