Re: Anisodoris nobilis - Peltodoris or Archidoris?

April 4, 2006
From: Angel Valdes

Concerning message #16234:

Dear Bill,
In our revision of the caryophyllidia-bearing dorids, Terry Gosliner and I found that the type species of Anisodoris and Diaulula belong to the same genus, and therefore these two names are synonyms, Diaulula having precedence. We also found that all caryophyllidia-bearing dorids are members of the same clade, thus, if we are correct, the presence of caryophyllidia is an important character for dorid classification.

The problem with species of Anisodoris is that this genus name has been widely used for species with and without caryophyllidia. It would be a very time consuming task to review all species of cryptobranch dorids and try to determine their taxonomic placement in light of the results of our phylogenetic hypothesis. So we preferred to provide diagnoses for all genera and leave for future research, or our colleagues research, to determine the taxonomic placement for all those hundreds of species names. When we wrote the diagnoses we were conscious that many of them where too inclusive or exclusive and would need further work after examining real animals.

Said so, "Anisodoris" nobilis lacks caryophyllidia, has a prostate with two distinctive regions, the anterior border of the foot is grooved and notched, and it has no jaws on the labial cuticle, therefore, and according to my subsequent paper (Valdés 2002), it should be placed in the genus Peltodoris.

I think the Forum is an ideal place for fine tuning and testing of proposed classifications, by examining and posting anatomical features of species that are overlooked in more general phylogenetic hypotheses and revisions of larger groups.

  • Valdés, A. & Gosliner, T. M. 2001. Systematics and phylogeny of the caryophyllidia-bearing dorids (Mollusca, Nudibranchia), with the description of a new genus and four new species from Indo-Pacific deep waters. Zoological Journal of the Linnean Society, 133: 103-198.
  • Valdés, A. 2002. A phylogenetic analysis and systematic revision of the cryptobranch dorids (Mollusca, Nudibranchia, Anthobranchia). Zoological Journal of the Linnean Society, 136: 535-636.

Best regards,

Valdes, A., 2006 (Apr 4) Re: Anisodoris nobilis - Peltodoris or Archidoris?. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Thanks Angel,
Bill Rudman


Peltodoris nobilis

Related messages

  1. Re: Peltodoris nobilis eggs (British Columbia)
    From: Jackie Hildering & Glen Miller, August 17, 2007
  2. Peltodoris nobilis eggs (British Columbia)
    From: Jackie Hildering, August 14, 2007
  3. Peltodoris nobilis from California waters
    From: Ken Tucker, August 9, 2007
  4. Peltodoris nobilis mating
    From: Jim Lyle, December 4, 2006
  5. Fish attacking Peltodoris nobilis
    From: Leslie Harris, July 12, 2006
  6. Peltodoris nobilis from Puget Sound, Washington
    From: Jan Kocian, April 28, 2006
  7. Anisodoris nobilis - Peltodoris or Archidoris?
    From: Bill Rudman, April 3, 2006
  8. Peltodoris nobilis from Santa Cruz Is.
    From: Kevin Lee, April 3, 2006
  9. Mating Anisodoris nobilis
    From: Bruce Wight, October 1, 2001
  10. Re: Anisodoris nobilis? from California
    From: Bruce Wight, January 25, 2001
  11. Anisodoris nobilis from Santa Cruz Island
    From: Jeff Goddard, January 25, 2001
  12. Anisodoris nobilis? from California
    From: Deb Lantis, January 21, 2001
  13. Another photo of Anisodoris nobilis
    From: Bruce Wight, October 12, 2000

Show factsheet and all related messages