Is this Facelina rubrovittata ?

August 29, 2006
From: Cristian Magnani

Dear Bill
I think this tiny aeolid nudibranch might be a specimen of Facelina rubrovitta and I'd like to know your opinion about it. The nudi was moving pretty fast so probably the sponge on the bottom is not is food.

Locality: Secca della Vedova, Capraia, Tremiti Islands, 15 metres, Italy, Adriatic Sea, 18 August 2006, on rock wall. Length: 6 mmw. Photographer: Cristian Magnani.

Thanks a lot
Best regards
Cristian
http://www.nudibranchi.it/Eng_main.htm

info@nudibranchi.it

Magnani, C., 2006 (Aug 29) Is this Facelina rubrovittata ?. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/17536

Dear Cristian,
I am pretty sure this is a juvenile Facelina rubrovitta. The white-tipped rhinophores, oral tentacles, and cerata, are all ways of separating it from the similarly coloured Facelina fusca. In adults there are rounded ridges on the rhinophores, but in adults they ahve not developed. In your animal there a few small bumps visible on the lower photo which could be the beginnings of these ridges. These aeolids are hydroid feeders.

Best wishes,
Bill Rudman

Rudman, W.B., 2006 (Aug 29). Comment on Is this Facelina rubrovittata ? by Cristian Magnani. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/17536

Factsheet

Facelina rubrovittata

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