Hypselodoris tricolor from Croatia

October 7, 2003
From: Adam Petrusek

Dear Bill,
To accompany my earlier message here are photos of a dorid from Vrulja, on Makarska Riviera, Adriatic Sea, Croatia, on September 16, 2003.

Two show the species during and after mating
depth 31 m. The lower right showa one small (1 cm) dorid on Reniera fulva
depth ~20 m

I guess they are some Chromodoris(?)
Thanks for any help identifying them.
Adam Petrusek

petrusek@cesnet.cz

Petrusek, A,, 2003 (Oct 7) Hypselodoris tricolor from Croatia. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/11143

Dear Adam,
These are one of the famous 'blue hypselodorids which are found in the Mediterranean and nearby Atlantic. They have caused many identification problems over the years so I am hesitant to identify them from so far away. However I am pretty sure these animals are Hypselodoris tricolor. This species seems to feed specifically on species of the sponge genus Dysidea so it is possible that rather than being interested in the reddish Reniera in your photo, the single animal is interested in the greyish sponge in the upper half of the photo which could be a species of Dysidea.

We still have much to learn about colour variation in this group of species, so photos of different sized animals, of them feeding and of them laying eggs would be very valuable additions to the Forum
Best wishes
Bill Rudman

Rudman, W.B., 2003 (Oct 7). Comment on Hypselodoris tricolor from Croatia by Adam Petrusek. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/11143

Factsheet

Hypselodoris tricolor

Related messages

  1. Hypselodoris tricolor from Brittany
    From: Wilfried Bay-Nouailhat, September 9, 2009
  2. Hypselodoris tricolor feeding
    From: Antoni López-Arenas i Cama, September 4, 2009
  3. Re: Hypselodoris tricolor, on Cacospongia
    From: M. Baki Yokes, April 3, 2009
  4. Re: Hypselodoris tricolor on Cacospongia
    From: Vincent Maran, November 4, 2008
  5. Re: Hypselodoris tricolor on Cacospongia
    From: Philippe Perrier, November 4, 2008
  6. Hypselodoris tricolor, on Cacospongia
    From: Sylvain Le Bris, November 3, 2008
  7. Hypselodoris tricolor, on a sponge
    From: Stephane Ores, July 19, 2006
  8. Strange structure on Hypselodoris tricolor
    From: Dominique Horst, June 28, 2006
  9. Hypselodoris tricolor - feeding ?
    From: Kerem Turker, June 21, 2006
  10. Re: Another Hypselodoris from Portugal
    From: Marina Poddubetskaia Ossokine, April 26, 2006
  11. Re: Another Hypselodoris from Portugal
    From: Juan Lucas Cervera, April 26, 2006
  12. Another Hypselodoris from Portugal
    From: David Abecasis, April 24, 2006
  13. Hypselodoris tricolor or H. fontandraui
    From: Sylvain Le Bris, June 24, 2005
  14. Re: Hypselodoris tricolor from Croatia
    From: Adam Petrusek, October 8, 2003
  15. Hypselodoris tricolor or H. bilineata from Turkey
    From: Ferda Buyukbaykal, July 26, 2003
  16. Hypselodoris tricolor from French Mediterranean
    From: Marina Poddubetskaia, June 24, 2002
  17. Hypselodoris tricolor from Spain
    From: Luis Sánchez Tocino, October 29, 2001
  18. Juvenile of Hypselodoris tricolor from Spain
    From: Luis Sánchez Tocino, October 29, 2001
  19. More photos of Hypselodoris tricolor
    From: Luis SánchezTocino, October 29, 2001
  20. Re: Hypselodoris tricolor? from Italy
    From: Juan Lucas Cervera, September 28, 2001
  21. Hypselodoris tricolor? from Turkey
    From: Baki Yokes, September 28, 2001
  22. Hypselodoris tricolor or H. midatlantica
    From: Juan Lucas Cervera, February 15, 2001
  23. Hypselodoris tricolor from Spain
    From: Alma Sánchez, February 14, 2001
  24. Re: Hypselodoris tricolor?
    From: Roberto Moresco, January 27, 1999
  25. Re: Hypselodoris tricolor
    From: Erwin Koehler, January 22, 1999
  26. Hypselodoris tricolor? from Italy
    From: Roberto Moresco, January 21, 1999

Show factsheet and all related messages