Thuridilla hoffae
Gosliner, 1995

Superfamily: ELYSIOIDEA
Family: Elysiidae


Tropical western Pacific.


Vanuatu, intertidal. 1cm long. PHOTO: Vinka Stenhouse.

The background colour of the animal is dark blue-black. There is bright orange-yellow line at the parapodial edge, and a broad light blue band running parallel to the parapodial edge just below the edge. It is separated from the orange-yellow edge by a thin line of blue-black. The rhinopores are also light blue except for the tip which is blue-black. A dorsal patch of blue also occurs on the posterior tip of the foot. The anterior margin of the foot has an orange line.

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

Authorship details
Rudman, W.B., 2003 (November 27) Thuridilla hoffae Gosliner, 1995. [In] Sea Slug Forum. Australian Museum, Sydney. Available from

Related messages

Thuridilla hoffae from Mayotte

November 28, 2003
From: Marina Poddubetskaia

Dear Bill,
Here is one more Thuridilla from Mayotte : I think it is Thuridilla hoffae and I'd like you to confirm it, please. The second specimen seems bluer than usual, but in fact the photo is overexposed (much more light than usual). The real colour was dark blue.

Each time I photographed this species (usually found under stones and dead corals), it tried to hide into some tiny hole somewhere in the rock. I lost 2 specimens like this.

Upper Photo 1:
November 11, 2003
Location: Handrema, Mayotte Island, France, Indian Ocean
Site: Banc Laclocheterie
Depth: 5m
Size: 10mm
Lower Photo 2:
November 05, 2003
Location: Mayotte Island, France, Indian Ocean
Site: Passe en S, buoy n° 3
Depth: 6m
Size: 5-6mm

Best wishes,

Poddubetskaia, M., 2003 (Nov 28) Thuridilla hoffae from Mayotte. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Thanks Marina,
Yes I'm sure this is Thuridilla hoffae.
Best wishes
Bill Rudman

Thuridilla hoffae from Vanuatu

February 17, 2000
From: Vinka Stenhouse

Dear Bill,

This one is from, Vanuatu. It was 1cm long and was found intertidally.

Yours sincerely,

Vinka Stenhouse.


Stenhouse, V., 2000 (Feb 17) Thuridilla hoffae from Vanuatu. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Dear Vinka,
This is another of the colourful sacoglossans of the genus Thuridilla. This species is Thuridilla hoffae.

Best wishes,
Bill Rudman.

Rudman, W.B., 2000 (Feb 17). Comment on Thuridilla hoffae from Vanuatu by Vinka Stenhouse. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from