Thuridilla vatae from Reunion Island

February 7, 2008
From: Hugues Flodrops

Concerning message #20597:

Dear Bill, Gary,and nudibranch fanatics,
One year after Gary found Thuridilla vatae, I found it at Reunion Island (another ocean) - the first Thuridilla vatae.

It's seems to be a T. vatae but the majority of the rhinophores are red/orange rather than white like Thuridilla albopustulosa. A present for Christmas, near a Thuridilla endemic to the Indian Ocean called T. virgata [see message #21323].

Locality: Pool of Grande Anse, 1 metre, Reunion Island, Indian Ocean, 25 December 2007, Muddy and Night. Length: 20 mm. Photographer: Hugues Flodrops.

Best regards.

Flodrops, H., 2008 (Feb 7) Thuridilla vatae from Reunion Island. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Dear Hugues,

It's nice to have a photo of an Indian Ocean example of T. vatae. In Gosliner's 1995 revision of the genus he records this species from both Reunion Island and South Africa. I think the reason the rhinophores seem too orange in your photo is that the rhinophores are somewhat retracted so the orange band at the tip seems proportionally larger than usual.

  • Gosliner, T.M. (1995) The genus Thuridilla (Opisthobranchia: Elysiidae) from the tropical Indo-Pacific, with a revision of the phylogeny and systematics of the Elysiidae. Proceedings of the California Academy of Sciences, 49(1): 1-54.

Best wishes,
Bill Rudman

Rudman, W.B., 2008 (Feb 7). Comment on Thuridilla vatae from Reunion Island by Hugues Flodrops. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from


Thuridilla vatae

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