Dendrodoris denisoni from Sydney

January 3, 2000
From: Stephanie Clark

Dear Bill

This specimen of Dendrodoris denisoni was about 110mm and was one of about 70+ specimens seen around Rodd Island in Iron Cove, Sydney Harbour on the 22 Nov 1999. A large number of the individuals sighted were next to and / or laying egg strings. These were orange and consisted of hundreds of very small eggs. At the same time about 50+ specimens of Dendrodoris fumata were also found around the island. However, I did not not see any of them laying eggs.

The other species of nudibranch present at the time was two small clusters (about 10 individuals) of Noumea haliclona (no photos) on or next to there food a yellow sponge (Darwinella sp). The clusters mostly consisted of juveniles with a few scattered adults, nothing bigger than 10mm. Also found was one Aplysia extraordinaria.

Stephanie

inverte@internet-australia.com

Clark, S., 2000 (Jan 3) Dendrodoris denisoni from Sydney. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/1711

Dear Steph,
Thanks for the photo. This colour form of D. denisoni is quite common in estuaries and large harbours in south eastern Australia. I have not seen this colour form on the open coast.

Best wishes,
Bill Rudman.

Rudman, W.B., 2000 (Jan 3). Comment on Dendrodoris denisoni from Sydney by Stephanie Clark. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/1711

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