Flabellina affinis

(Gmelin, 1791)

Flabellina affinis
Photographed by: José Antonio Fayos

Kingdom:Animalia
Phylum:Mollusca
Class:Gastropoda
Subclass:Opisthobranchia
Order:Nudibranchia
Suborder:Aeolidina
Family:Flabellinidae
Species:Flabellina affinis

Comment from Richard Willan on photo #8321
A nice photo of a typical individual

Comment from Richard Willan on photo #7301
Flabellina affinis (in a group of 3 or 4 individuals on the right of this photo) plus Cratena peregrina (a single individual on the left of this photo).

Comment from Richard Willan on photo #7300
A typical individual

Comment from Richard Willan on photo #5472
This aeolid is one of several European species of the family Flabellinidae characterised by having the cerata arising in clusters from common stalks as can be seen very nicely in this photo - the genus Coryphella used to cover such species. Flabellina affinis itself is specifically characterised by having an opaque violet zone immediately below the cnidosac at the tip of each ceras, and this violet zone can just be made out in some of the cerata in this individual.

Comment from Richard Willan on photo #2480
Note the characteristic purple marking at the tips of the cerata (which obscures the cnidosac), but in this individual it is reduced to a narrow purple ring.

Comment from Richard Willan on photo #1832
Note how the cerata arise from stalks in this species and two other closely related species from the Mediterranean Sea – Flabellina pedata and Flabellina ischitana. In Flabellina affinis the tips of the cerata have opaque purple pigment.

Locality:

 

Pictures of Flabellina affinis

Flabellina affinis from Siracusa, Italy
Location: Siracusa, Italy
Posted 8 years ago
Viewed 1010 times
 
 
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