Information on Chromodoris macfarlandi

February 12, 2002
From: Annalise Trepanier

I am doing a project for school and I can not find a lot of information about the MacFarland's Chromodorid (Chromodoris macfarlandi). I wanted to know if you could send me some stuff on my animal.
Annalise Trepanier

Trepanier, A., 2002 (Feb 12) Information on Chromodoris macfarlandi. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Dear Annalise,
I don't know if we know too much about the life of Chromodoris macfarlandi. We have still a lot to learn about most marine animals. If you have a look at the Chromodoris macfarlandi Page you will find photos and some information in the messages on that page.

It feeds on two species of sponge, and like all chromodorids it can remove nasty chemicals from the sponges it eats and store them in special glands in its skin for its own defence. When fish, or other predators attempt to eat the slug they will get a mouthful of nasty chemicals. If you look at the pages listed on the Opisthbranch Defence page, in particular those to do with mimicry, defensive coloration and defensive glands, you will see that these animals are more than just a pretty face.

Their bright colours are part of an elaborate mechanism to warn fish that they should be left alone.

Perhaps someone can give us some more information, or reference to more information, on other aspects of their natural history.

Good luck with your project,
Bill Rudman

Rudman, W.B., 2002 (Feb 12). Comment on Information on Chromodoris macfarlandi by Annalise Trepanier. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Related messages

  1. Chromodoris macfarlandi from California coast
    From: Ken Tucker, February 7, 2007
  2. Chromodoris macfarlandi? from California
    From: Josiah Renfree, June 10, 2006
  3. Mating Chromodoris macfarlandi
    From: Kevin Lee, March 13, 2006
  4. Chromodoris macfarlandi from California
    From: Chris Grossman, July 28, 2005
  5. Chromodoris macfarlandi from California
    From: Bruce Wight, August 6, 2004
  6. Chromodoris macfarlandi on Aplysilla polyraphis
    From: Jeff Goddard, June 13, 2000
  7. Sponge prey of Chromodoris macfarlandi
    From: Jeff Goddard, June 5, 2000

Show factsheet and all related messages