March 1, 2007
From: Amy Shek
I met a Giant MONSTER SEA HARE at Camp Cove, Sydney Harbour (5m depth)last Sunday(18/2/07)while diving.
I mean REALLY REALLY BIG ONE, when I saw it, I took off my fin and put it next to it and it was just about the same size as my fin (fin length: 25inches) photos attached.
Locality: Camp Cove - Sydney Harbour, 5 metres, NSW, Australia, 18 February 2007, sandy bottom. Length: 25 inches. Photographer: Amy Shek.
Could you please identify this sea hare for me?
Wonder what is the biggest size of sea hare that can grown to?
email@example.comShek, A., 2007 (Mar 1) Giant Sea Hare from Sydney Harbour. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/19519
Somewhere in the Forum I ask participants not to use CAPITALS as it is a form of internet shouting - but I guess in this case you are allowed to be a bit excited. 25 inches [= 65 cm] is definitely a large slug. Your animal is Aplysia extraordinaria which is found down the east coast of Australia, and is possibly the same as another large sea hare in Western Australia called Aplysia gigantea, which apparently grows a bit bigger. I haven't kept a record of the largest A. extraordinaria reported, but yours must be up near the biggest.
However I am afraid it has a way to go compared with Aplysia vaccaria from the west coast of North America which has been reported to grow to 99 cm [= 39 inches] in length.
Have a look at the Fact Sheets and accompnying messages for more information.
Large tubercled ?Aplysia at Little Bay, Sydney
From: Kirsten Crosby, March 18, 2010
Aplysia extraordinaria from Nelson's Bay, New South Wales
From: Bruce Potter, June 18, 2007
Aplysia extraordinaria from nthn New Zealand
From: Rendt Gorter, March 12, 2007
Our first meeting with a sea slug
From: James Salama, August 29, 2006
Juvenile Aplysia extraordinaria from Sydney
From: Donald Miles, August 16, 2006
Aplysia gigantea / A. extraordinaria
From: Stephen Davison, October 27, 2005
Re: Aplysia extraordinaria from New Zealand
From: Julie Marshall, June 15, 2005
Aplysia extraordinaria? from Townsville
From: Adam Coxhead, August 7, 2003
Re: Sea Hare? from Stockton, NSW
From: Peter Ruxton, November 29, 2002
Sea Hare? from Stockton, New South Wales
From: Peter Ruxton, November 28, 2002
Aplysia extraordinaria? from New Zealand
From: Wade Doak , August 18, 2001
Aplysia extraordinaria from Sydney Harbour
From: Stephanie Clark, January 3, 2000
Aplysia extraordinaria - another swimmer
From: Julie Marshall, September 14, 1999