Paradoris lopezi from Mexico

March 2, 2007
From: Alicia Hermosillo

Dear Bill,

Finally after 5 years of hard work, I finished up and got my PhD at the end of last year. .. so now I have a bit more time on my hands, I have been going over your species list and noticed you do not have Paradoris lopezi Hermosillo & Valdes, so please, let me introduce it.

  • Hermosillo A. & Valdés, A. (2005) Two new Dorids (Mollusca: Opisthobranchia) of Bahía de Banderas and La Paz, México. Proceedings of the California Academy of Sciences, 55( 28): 550-560, 5 figs.

If anybody out there is interested in my thesis (in Spanish) I would be very happy to send the pdf document.

Ali (or Dr. Ali now I guess!)

Hermosillo, A., 2007 (Mar 2) Paradoris lopezi from Mexico. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Dear Dr Ali,
Congratulations on your Ph.D. It doesn't seem so long ago that you first wrote to the Forum. Thanks for the information on Paradoris lopezi. It has made me fix up a few other Paradoris species - so I'll make today a Paradoris day

In Dayrat's (2006) exhaustive review, he considers 'wide holes on the dorsal notum' to be a character of Paradoris, and they are certainly present in your SEM photos of the mantle of Paradoris lopezi.  What puzzles me is that I can't see them in the photos of the living animals and although they are present in SEM mounts published by Dayrat for Paradoris dubia, I have never seen them in living animals. Perhaps they are gland sacs which have collapsed during the preparation of tissue for SEM study?. Interestingly, in your description of Paradoris lopezi  you mention that P. lopezi  produces a milky substance when disturbed, which, as I note on the P. dubia Fact Sheet, I have often observed from the mantle glands of that species .

Best wishes,
Bill Rudman

Rudman, W.B., 2007 (Mar 2). Comment on Paradoris lopezi from Mexico by Alicia Hermosillo. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from


Paradoris lopezi