Berthella or Berthellina? from Spain

March 11, 2004
From: Juan Luis Menéndez

Dear Bill:
This photo was taken last summer in the northern coast of Spain, in Asturias. I think that this is Berthella aurantiaca, but it could be Berthellina edwardsii also. I'm not sure. What do you think?
Thanks
Juan Luis Menéndez

jluism@correo.uniovi.es

Menéndez, J.L., 2004 (Mar 11) Berthella or Berthellina? from Spain. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/12378

Dear Juan,
As you'll see from other messages on this page it is not possible to identify these red, orange or yellow species from one another just from external features. If the internal shell can be felt we can separate species of Berthellina [with a very small shell] from Berthella [with large shell] but it seems there could be more than one species of orange Berthellina in the NE Atlantic, which means we would need to cut it open and study its anatomy before we could be sure.

So at the moment I am putting all these 'orphans' on the Berthellina edwardsii page, but there is no way of knowing if I'm right or wrong.
Best wishes
Bill Rudman

Rudman, W.B., 2004 (Mar 11). Comment on Berthella or Berthellina? from Spain by Juan Luis Menéndez. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/12378

Factsheet

Berthellina edwardsii

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