New Species from New Zealand?

January 23, 2002
From: Janene Mills

Dear Bill,
Last weekend I was diving at the Poor Knights Islands, [N.E. New Zealand] at a site called Middle Arch, I was on the wall to the left of the air bubble cave at about 18M when I saw a Nudibranch which I have never seen before it was completely yellow or a fluoro yellow in colour about 30mm long and it was next to 3 or 4Tambja sp, moments later I saw another but this was solo any ideas?

Mills, J., 2002 (Jan 23) New Species from New Zealand?. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Note added 17 May 2007: This species is now named Tambja tenuilineata

Dear Janene,
I guess you are talking about 4Tambja sp. 1. This species ranges in colour from dark green with black lines to bright yellow. Gareth Jones just recently sent a photo of the yellow one from the Poor Knights so this colour form must be having a bit of reproductive success at the moment in New Zealand. However, since you didn't give me many clues it's possible you are talking about quite a different animal. If so let me know and I'll have another guess.
Best wishes,
Bill Rudman

Rudman, W.B., 2002 (Jan 23). Comment on New Species from New Zealand? by Janene Mills. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

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