Pleurobranchus peroni - Jervis Bay

October 24, 2003
From: Sue Newson

Hi Bill,
Reading the latest message re: Pleurobranchus peroni reminded me of a couple of dives when I came across them.
The first one was at a site called "Dent Rock", a personal favourite of mine [Jervis Bay, New South Wales, Australia].
It is a pile of ballast rock dumped in the late 1800's about 150m from shore. The highest point lies beneath the surface from .5m - 2m with a max depth of 5-7m, tide dependent. This isolated reef is abundent with many various species of marine life, many of which are residents that I am beginning to recognize through repeated sightings. Unfortunately I can't say that about the opistobranchs. Those sightings vary in species and abundance.
The night I saw Pleurobranchus peroni for the first time, there was many different species in large numbers. They also included: Umbraculum umbraculum and Berthellina citrina as well as a few snails. I have attached photo's that I took that night but unfortunately I didn't get a photo of Umbraculum umbraculum due to a fogged lens at the end of the dive.

Dive details:
Site: Dent Rock, Jervis Bay
22 November 2002 9.30pm - 10.30pm
average depth: 3m (where pleurobranchs were found)
Viz 2m in torch light.(good for this spot)
Water temp: 19*C
Low tide

Sue Newson

Newson, S., 2003 (Oct 24) Pleurobranchus peroni - Jervis Bay. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Thanks Sue,
I am sure I don't need to say it, but photos of eggs and feeding are always welcome. I don't know why species of Pleurobranchus seem to occur in quite large numbers and then disappear, but it certainly makes it difficult to plan a study of their natural history
Best wishes
Bill Rudman

Rudman, W.B., 2003 (Oct 24). Comment on Pleurobranchus peroni - Jervis Bay by Sue Newson. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Related messages

  1. Colour in Pleurobranchus peroni from Reunion Is.
    From: Hugues Flodrops, September 22, 2008
  2. Pleurobranchus peroni from Reunion Island
    From: Hugues Flodrops, September 22, 2008
  3. Pleurobranchus peroni from the Seychelles
    From: David Barnes, September 18, 2007
  4. Re: Pleurobranchus peroni from N. Sulawesi
    From: Ron Velarde, December 15, 2006
  5. Re: Pleurobranchus peroni from N. Sulawesi
    From: Hugues Flodrops, December 13, 2006
  6. Pleurobranchus peroni from eastern Australia
    From: Linda Mougeot, December 7, 2006
  7. Pleurobranchus peroni mating?
    From: James Spears, May 4, 2006
  8. Pleurobranchus peroni from N. Sulawesi
    From: Linda Ianniello, December 5, 2005
  9. Re: Mystery slug from Malaysia
    From: Roberto Sozzani, May 11, 2005
  10. Pleurobranchus peroni from Indonesia
    From: H.Haluk Akbatur, December 11, 2003
  11. Pleurobranchus peroni from Jervis Bay
    From: Sue Newson, November 12, 2003
  12. Pleurobranchus peroni from Sunshine Coast
    From: Gary Cobb, October 21, 2003
  13. Juvenile Pleurobranchus peroni
    From: Leanne & David Atkinson, May 23, 2003
  14. Pleurobranchus peroni from Cook Islands
    From: Sonja Miller, December 2, 2002
  15. Pleurobranchus peroni from southern Korea
    From: Dong Bum, Koh, November 18, 2002
  16. Juvenile Pleurobranchus peroni from S. Africa
    From: Valda Fraser, October 17, 2002
  17. The status of Pleurobranchus hirasei
    From: Nishina Masayoshi, July 25, 2002
  18. Juvenile Pleurobranchus peroni
    From: Nishina Masayoshi, November 2, 2001
  19. Pleurobranchus from South Africa
    From: Valda Fraser, August 10, 2001
  20. Pleurobranchus peroni from New South Wales
    From: Patty Jansen, February 24, 2001
  21. Pleurobranchus peroni from Sydney
    From: Barbara Harvey, March 31, 2000
  22. Pleurobranchus peroni from Sth Africa
    From: Valda Fraser, December 7, 1999
  23. Is this S.African pleurobranch Berthella?
    From: Ernest C.J. Seamark, April 18, 1999

Show factsheet and all related messages