Nudibranch from intertidal seaweed

April 9, 2007
From: T. Joan Hales

Dear Bill,
I found this tiny 3 mm nudibranch on seaweed at Cape Paterson, Victoria,Australia, 24 February 2007 which is open to Bass Strait. It was from the low intertidal area. On 26 February 2007, I found another from weed at Harmers Haven, Victoria, Australia, which is about 2 kms west of Cape Paterson. I have never seen them before. The photo is not large due to the size of the animal and the limitations of my camera. I think from your website that it is Aegires exeches.

Locality: Cape Paterson, Low tide level, Victoria, Australia, Bass Strait, 24 February 2007, Rock platform. Length: 3 mm. Photographer: T. Joan Hales.


Hales, T. J., 2007 (Apr 9) Nudibranch from intertidal seaweed. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Dear Joan,
Thanks for this record. As you will see in the messages on the Aegires punctilucens Fact Sheet I am not convinced that A. exeches is a good species. I suspect it is the same as A. punctilucens. If you go to that species, you will find some more records of the species from Australian waters.

Best wishes,
Bill Rudman

Rudman, W.B., 2007 (Apr 9). Comment on Nudibranch from intertidal seaweed by T. Joan Hales. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from


Aegires exeches