Paradoris indecora ?
Gran Canaria Island, Canary Ids, off the west coast of Africa, Size about 2 cm, depth 4 m, February 1998. PHOTO: Arthur J. Telle. (See message below).
See Lucas Cervera's message below about identification.
• Bergh, L.S.R. (1881). Malacol. Unters. Semper Sect. 2, 4(2) Suppl. (2): 79-128, pls. G-L
Rudman, W.B., 2000 (May 30) Paradoris indecora ? (Bergh, 1881). [In] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/parainde
June 11, 2007
From: M. Baki Yokes
Concerning message #16985:
Here are some photos of Paradoris indecora from Gokova Bay (SW Turkey). I have examined many specimens, and find that the colouration varies among individuals, except for the black spots, which are always found. In some individuals the tubercles are not observed, however, as can be seen in this series of photos of the same specimen, the tubercles are retractile when the animal is disturbed. Thus, in some photos of this species the tubercles may not be clearly seen.
Locality: Gokova Bay, 5 m, Turkey, Aegean Sea, 25 June 2006, under stone. Length: 32 mm. Photographer: Baki Yokes.
firstname.lastname@example.orgYokes, M.B., 2007 (Jun 11) Paradoris indecora from Turkey. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/19972
Thanks for this record. Are you suggesting Cristian's animal [#16985 ] is also Paradoris?
November 9, 2006
From: Cristian Magnani
Concerning message #17679:
In order to confirm your suggestion about food sponge, I checked all the pictures I took on last June 24 and realized the picture I sent you was the only one where a slug was on a dark sponge. This in spite I saw several specimens in a quite a restricted area.
But then, checking the pictures taken on July 8, I found another photo of a specimen on the same sponge and a picture of eggs coils too. So I guess you were right!
Locality: Numana, 8 metres, Italy, Adriatic Sea, 08 July 2006, on rocks. Length: 40 mm. Photographer: Cristian Magnani.
Just to add some more information on this species: typically this nudibranch, in our area, is seen for a very short time ( not more than 3 weeks from the end of June to the beginning of July) and only in a couple of dive sites.
Magnani, C., 2006 (Nov 9) Re: Paradoris indecora from the Adriatic. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/18250
Thanks for the further information. It certainly seems the sponge may be worth looking out for in the future. I have added a close-up of the sponge texture, in case someone wants to identify it in the future, and a close-up showing the mantle to show the consistent patterning of patches of black specks, which certainly can be overlooked. Hopefully someone will be able to confirm this animal's identity.
If the eggs prove to belong to this dorid, then there large size would suggest the larvae hatch out either as crawling young or as non-feeding veliger larvae, which spend only a short time in the plankton.
November 8, 2006
From: Cristian Magnani
I found this nudibranch on two different dive sites last June. I think it is a specimen of Paradoris indecora but I'd like to know your opinion about.
Locality: I Bianconi, Numana, 9 metres, Italy, Adriatic Sea, 24 June 2006, On rocks. Length: 30 mm. Photographer: Cristian Magnani.
Magnani, C., 2006 (Nov 8) Paradoris indecora from the Adriatic. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/17679
These animals fit Schmekel & Portmann's (1982) description of Paradoris indecora very well. It seems the scattered patches of black specks are quite characteristic, as are the low flattened tubercles.
If these animals are indeed Paradoris indecora then it would seem the others on the Forum identified as this species may be something else? Your upper photo suggests a food sponge for the species as well.
August 27, 2000
From: Juan Lucas Cervera
I agree with the Angel's opinion.
email@example.comCervera, J.L., 2000 (Aug 27) Re: Unknown dorid from Italy. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/2931
I should have checked! I had forgotten that we already had a good photo of Paradoris indecora on the Forum.
August 25, 2000
From: Angel Valdes
All the best,
firstname.lastname@example.orgValdes, A., 2000 (Aug 25) Re: Unknown dorid from Italy. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/2924
August 24, 2000
From: Erwin Koehler
this one is from Italy, Finale Ligure, divesite "Bergeggi", depth 5 m,
size ~ 5 mm,
date July 22, 2000.
It was made by Franco De Lorenzi
The quality is rather poor, I hope it can be identified, at least it's Genus...
Medslugs.Koehler@t-online.deKoehler, E., 2000 (Aug 24) Unknown dorid from Italy. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/2907
Let's see if anyone can help us.
May 31, 2000
From: Juan Lucas Cervera
The dorid from Canary Islands is not Discodoris confusa, but probably a Paradoris. It seems to me that this animal could be P. indecora (Bergh, 1881). However, for more information, I recommend the Ortea's paper "Study of the Atlantic species of Paradoris Bergh, 1884 (Mollusca: Nudibranchia: Discodorididae) collected from Canary Islands", and published in Avicennia, 3: 5-27, (1995).
I hope this can be useful.
email@example.comCervera, J.L., 2000 (May 31) Re: Dorid from Canary Ids. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/2419
Thanks for the help. I am happy to tentatively identify it as Paradoris indecora. I am afraid I do not have a copy of Ortea's paper in Avicennia, one of many journals I am afraid we don't subscribe to, for financial reasons.
May 10, 2000
From: Erwin Koehler
this photo is from Gran Canaria Island, Canary Ids, off the west coast of Africa, divesite "Arinaga" taken by Arthur J. Telle,
Size about 2 cm, depth 4 m, February 1998.
Medslugs.Koehler@t-online.deKoehler, E., 2000 (May 10) Dorid from Canary Ids. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/2371
This may be a pale version of Discodoris confusa Ballesteros, Llera, & Ortea, 1985 but I would appreciate some comments from Spanish or Portugese experts please.
There is a photo of a darker mottled Discodoris confusa in Peter Wirtz's paper "Opisthobranch Molluscs from the Madeira Archipelago" (1999) Vita Marina 46(1-2): 1-18 the photo being reproduced on Mike Miller's Slug Site at http://siolibrary.ucsd.edu/slugsite/wirtz/wirtz4.htm.
Both it and your photo seem to have the same pale patches down each side with a yellow or brown tipped papilla in each patch. They also both have the high collar around the gill opening.