Re: Is this also Chromodoris quadricolor?

November 5, 2005
From: Binyamin Koretz

Dear Bill,
Along with Chromodoris kuiteri, I would also cast doubt on Chromodoris hamiltoni being in the Red Sea, or at least at this end of it. Ilan's animal [message #9457] seems to me to be what we are calling Chromodoris strigata and not Chromodoris hamiltoni. In his photo that you suggested might be C. hamiltoni, you can clearly see the characteristic dark translucent spots on the mantle, which generally run to bluish in the Red Sea.

Jacob's question [message #15098] further highlighted one of our constant slug issues in Eilat: distingushing between Chromodoris africana and Chromodoris quadricolor. The former is relatively rare and possibly seasonal (spring) while the former is common year-round. Based on your answer, I would guess that the majority of "africana" sightings here are really C. quadricolor, something that I suspected anyway.

Best regards
Binyamin

binyamin@koretz.net

Koretz, B., 2005 (Nov 5) Re: Is this also Chromodoris quadricolor?. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/15123

Dear Binyamin,
I suspect now that all the animals in Ilan's message are C. quadricolor. The basic difference in colour between C. quadricolor and C. africana is that C. quadricolor, as its name describes, has 4 'colours' - blue, white orange, black - while C. africana does not have blue. Unfortunately in photographing these animals the blue can be lost so trying to identify animals solely from photos can be very difficult. In living animals, apart from the colour, the shape of the bodies is quite different with C. quadricolor being relatively narrow with a straight sided, and fairly narrow, mantle skirt. C. africana, on the other hand has a broad oval shaped mantle with a wide mantle skirt. I must admit that at times I cannot resolve the indentity of some of these species from the photos. Unfortunately, the lack of blue in a photo does not necessarily mean the animal lacked blue.
Best wishes,
Bill Rudman

Rudman, W.B., 2005 (Nov 5). Comment on Re: Is this also Chromodoris quadricolor? by Binyamin Koretz. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/15123

Factsheet

Chromodoris quadricolor

Related messages

  1. Re: Abnormalities in Chromodoris quadricolor
    From: Joe De Vroe, May 7, 2009
  2. Chromodoris quadricolor & black sponge
    From: Kamal El Tawil, July 2, 2008
  3. Another Chromodoris africana from Tofo, Mozambique
    From: Natasja Vandeperre, April 28, 2008
  4. Re: Chromodoris quadricolor and the cowrie
    From: Vittorio Bruzzone, December 4, 2007
  5. Chromodoris quadricolor and egg ribbon
    From: Vittorio Bruzzone, December 4, 2007
  6. Chromodoris quadricolor and the cowrie
    From: Vittorio Bruzzone, November 27, 2007
  7. Chromodoris quadricolor feeding?
    From: Eddy Mannak, October 4, 2007
  8. Abnormalities in Chromodoris quadricolor
    From: Eddy Mannak, August 6, 2007
  9. Chromodoris quadricolor feeding on black sponge ?
    From: Kamal El Tawil, July 17, 2007
  10. Chromodoris quadricolor from the Red Sea
    From: Clarke Duncan, April 19, 2006
  11. Chromodoris quadricolor from the Red Sea
    From: Clarke Duncan, April 19, 2006
  12. Chromodoris quadricolor - behaviour
    From: Binyamin Koretz, March 1, 2006
  13. Chromodoris africana or C.quadricolor
    From: Umut Tural, February 10, 2006
  14. Chromodoris quadricolor from Egyptian Red Sea
    From: Chris Dekker, November 30, 2005
  15. Is this also Chromodoris quadricolor?
    From: Jacob Dafni, October 25, 2005
  16. Chromodoris quadricolor - strange behaviour
    From: Kamal El Tawil, October 7, 2005
  17. Chromodoris quadricolor from Egyptian Red Sea
    From: Kamal el Tawil, June 6, 2005
  18. Chromodoris quadricolor from Egypt
    From: Matan Ninio, March 25, 2005
  19. Chromodoris quadricolor from the Red Sea
    From: Binyamin Koretz, March 16, 2005
  20. 'Pyjama slugs' from the Red Sea
    From: Ilan Ben Tov, May 21, 2003
  21. Chromodoris quadricolor or C. magnifica
    From: Marina Poddubetskaia, March 10, 2003
  22. Chromodoris quadricolor or C. magnifica (2)
    From: Marina Poddubetskaia, March 10, 2003
  23. Chromodoris quadricolor/africana from Jordan
    From: Erwin Koehler, December 14, 2002
  24. Chromodoris quadricolor from Jordan
    From: Erwin Koehler, December 10, 2002
  25. Chromodoris quadricolor from Egypt
    From: Michael Mrutzek, October 1, 2002
  26. Chromodoris quadricolor? from the Red Sea
    From: Marina Poddubetskaia , April 27, 2002
  27. Chromodoris quadricolor from Saudia Arabia
    From: Larry Dupriest, April 2, 2001
  28. Chromodoris quadricolor? from the Red Sea
    From: Erwin Koehler, January 8, 2001
  29. Chromodoris africana from Red Sea
    From: Jochen Scholtyssek, July 7, 2000

Show factsheet and all related messages