Variants of Berthella martensi from Reunion Island

November 18, 2008
From: Hugues Flodrops


Concerning message #13819:

Hi Bill,
Here are four specimens of Berthella martensi to illustrate colour variability.

Locality: Etang-Salé, 38 metres, Reunion Island, Indian Ocean. Upper Photo: Rocky coast, depth 1 metre, specimen length 25 mm. Date: 3 August 2007. Middle & Lower Photos: "Les Grottes", Etang-Salé, Depth 38 metres, specimen lengths 35 mm (2 white animals), 40 mm (brownish animal). Date 8 November 2008. Photographer: Hugues Flodrops.

I hope it is interesting for the forum.
Regards and thanks.
Hugues.

hugues.flodrops@wanadoo.fr

Flodrops,H., 2008 (Nov 18) Variants of Berthella martensi from Reunion Island. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/22040

Dear Hugues,

Thanks for these examples of colour variation in this species. In an earlier message of Bob Bolland's [#825], which shows some other variations, one animal was very similar in colour to its food sponge. I note there appears to be a white sponge under the white animal in your lower photo. Perhaps this is another example of colour and food matching? On the right of your photo I can see some little pores but I can't see enough detail to be sure if this is a sponge or a compound ascidian. If you have a photo showing the 'sponge' more clearly it would be interesting to see it.

Best wishes,
Bill Rudman

Rudman, W.B., 2008 (Nov 18). Comment on Variants of Berthella martensi from Reunion Island by Hugues Flodrops. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/22040

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