Thorunna daniellae from Bali, Indonesia

October 6, 2008
From: Paul Osmond


I found this very small and colorful nudibranch moving across the rich soil on a muck dive in Tulamben Bay in Bali, Indonesia.

I thought it might be a color form of Chromodoris verrieri or Chromodoris albonares or similar as it seems to only have one purple band on the mantle and orangish-brown tinged rhinophores.

Locality: Tulamben Bay, 10m, Bali, Indonesia, 19 January 2007, Rich soil, muck dive. Length: 15mm. Photographer: Paul T. Osmond.


Osmond, P.T., 2008 (Oct 6) Thorunna daniellae from Bali, Indonesia. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Dear Paul,

This is Thorunna daniellae. Looking through earlier messages I nootice that as in your animal, there are sometimes orange markings on the front of the mantle edge and on the sides in some specimens. The folding of the mantle into a pair of lobes on each side is quite characteristic of species of Thorunna when they are not crawling.

Best wishes,
Bill Rudman

Rudman, W.B., 2008 (Oct 6). Comment on Thorunna daniellae from Bali, Indonesia by Paul Osmond. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from


Thorunna daniellae

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