Re: Trapania dalva from Florida

March 7, 2002
From: Juan Lucas Cervera

Hi Bill,
In my paper (with Garcia-Gomez and Megina): "A new species of Trapania Pruvot-Fol, 1953 from the Bay of Cadiz, with remarks on other Trapania species" [Ophelia, 52(1): 17-24], I included a photo of T. dalva from the Bahamas supplied by Colin Redfern. However, Linda's animal seems to me different than the animal that I enclosed in my colour plate. This species is very uncommon and I don't know the degree of colour variability of it.

Regards.
Lucas.

lucas.cervera@uca.es

Cervera, J.L., 2002 (Mar 7) Re: Trapania dalva from Florida. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/6383

Thanks Lucas,
I agree that my identification is doubtful. Firstly is Linda's animal a Trapania? I am pretty sure there are lateral processes alongside the rhinophores but not so sure if they occur by the gills. Obviously a look at the radula would be useful.

If it is a Trapania, the next problem is identifying Marcus' species. The original description does not give a very clear description of the external colour pattern and it could fit both Linda's photos and Brian Redfern's photos from the Bahamas. Perhaps the species is variable in colour. Obviously the radula of the two 'species' need to be compared with each other and with Marcus's description.
Just another of life's little problems
Cheers,
Bill Rudman

Rudman, W.B., 2002 (Mar 7). Comment on Re: Trapania dalva from Florida by Juan Lucas Cervera. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/6383

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