Flabellina affinis is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusk in the family Flabellinidae. It is the type species of the genus Flabellina.This species is found in depths to 50 m in European waters in the Atlantic Ocean from Portugal to Ghana and the Canaries and is widespread in the Mediterranean Sea
The species can grow to a length of 50 mm. It feeds primarily on species of Eudendrium, a very common hydroid genus in the Mediterranean Sea.
Flabellina affinis is often confused with Flabellina ischitana, but can be distinguished as follows:
Flabellina affinis: the outer part of the digestive gland in each ceras is not visible as the area beneath the subapical white ring is opaque violet in colour.
Flabellina ischitana: the ceratal surface has no purple-violet colouration and is translucent.
From Wikipedia, the free encyclopedia
Underwater photos by Costas Constantinou
Eggs of flabellina affinis,9mts deep,Xylophagou 10.06.2018
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