Phyllidia elegans laying eggs

May 30, 2007
From: Mirjam Broos

Dear Bill,

As a real beginner in seaslug determination I am not even sure about this species. Can you help me out?

Locality: Angels Windows, Lembeh Strait, max 25 metres, North Sulawesi, Indonesia, Celebes Sea, 09 october 2006, pinnacle. Length: ?. Photographer: Geert Prast.

Mirjam Broos

Broos, M., 2007 (May 30) Phyllidia elegans laying eggs. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Dear Mirjam,
One good thing about the Forum is that even 'beginners' can make a valuable contribution. This is Phyllidia elegans, and if you look carefully in both your photos you can see that the animal is laying a flat egg ribbon typical of phyllidiids. However we have very little information on the biology of these animals and as far as I know this is the first photo of its egg ribbon. Also its presence on this red-orange sponge is quite interesting as a number of phyllidiids feed on orange sponges of the genus Phakellia. These spiculate sponges are not that easy to identify from photos alone, but it certainly is an interesting co-incidence or correlation, as we know nothing of the biology of P. elegans.

Best wishes,
Bill Rudman

Rudman, W.B., 2007 (May 30). Comment on Phyllidia elegans laying eggs by Mirjam Broos. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from


Phyllidia elegans

Related messages

  1. Phyllidia elegans from Nth Sulawesi
    From: Sebastian Ferse, June 6, 2007
  2. Phyllidia elegans from Indonesia
    From: Sebastian Ferse, June 4, 2007
  3. Phyllidia elegans from the Nthn Mariana Ids
    From: Kenji Kobayashi, December 20, 2003
  4. Phyllidia elegans from Vanuatu
    From: Gary Cobb, October 19, 2003
  5. Phyllidia elegans from Myanmar
    From: Mary Jane Adams, April 3, 2003
  6. Phyllidia elegans colour forms mating
    From: Erwin Koehler, August 16, 2002
  7. Phyllidia elegans and P. schupporum
    From: Bernard Picton , July 4, 2002
  8. Phyllidia elegans From Riau, Indonesia
    From: Alice Lee, July 2, 2002
  9. Phyllidia elegans from Malaysia
    From: Kheong Sann Chan, June 15, 2002
  10. Phyllidia elegans from Christmas Island
    From: W.B. Rudman, May 15, 2002
  11. Phyllidia elegans from Indonesia
    From: W.B. Rudman, May 9, 2002
  12. Phyllidiid from the Red Sea
    From: Erwin Koehler, January 16, 2002
  13. Re: Phyllidia elegans?
    From: Erwin Koehler, September 3, 2001
  14. Phyllidia elegans?
    From: Erwin Koehler, August 9, 2001
  15. Phyllidia elegans? from Lady Musgrave Island
    From: David Harasti, February 17, 2001
  16. Phyllidia elegans from Indonesia
    From: Yasman, December 29, 2000
  17. Phyllidia elegans? from Java
    From: Aloysia Murni Shintosari, July 21, 2000
  18. What does Phyllidia elegans eat?
    From: John Brady, June 11, 2000
  19. Phyllidia elegans from Sulawesi
    From: Carlos Villoch, September 18, 1999
  20. Phyllidia elegans from Papua New Guinea
    From: Des Paroz, July 11, 1999

Show factsheet and all related messages