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/22040Dear 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
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