Sclerodoris ? sp.1.
Order: NUDIBRANCHIA
Suborder: DORIDINA
Superfamily: EUDORIDOIDEA
Family: Dorididae
PHOTO
Pupukea, Oahu, Hawaii; in ledge at night, 12 m. h109-o02. 14 mm; 12 June 1978; Photographer: Scott Johnson.
Not sure of the generic position, but fine radilating ridges in Scott Johnson's photos suggest Sclerodoris but Gary Cobb's photos [#21076] show unusual oral tentacles.
Authorship detailsRudman, W.B., 2008 (February 11) Sclerodoris ? sp.1. [In] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/sclesp1
Related messages
Re: New species of Dendrodoris? from sthn Queenslan
February 12, 2008
From: Cory Pittman
Concerning message #21368:
Hi Bill, Scott,
Just to chime in briefly, it looks like this animal may be the same as "Sclerodoris sp. 1" in Julie Marshall and Richard Willan's Nudibranchs of Heron Island, Great Barrier Reef.
Best wishes,
Cory
cory@cet.com
Pittman, C. C., 2008 (Feb 12) Re: New species of Dendrodoris? from sthn Queenslan. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/21374Thanks Cory,
Certainly looks similar
Best wishes,
Bill Rudman
Re: New species of Dendrodoris? from sthn Queensland [1]
February 11, 2008
From: Scott Johnson
Concerning message #21076:
Hi Bill,
Here are the last two photos of the Hawaiian specimens of Gary Cobb's recent Queensland record [see message #21367 for first three]. Data on the two are:
h109-o04 15mm; 10 June 1985; Pupukea, Oahu, Hawaii; in ledge at night, 10m
h109-o05 16mm; 9 May 1979; Pupukea, Oahu, Hawaii; exposed on reef at night, 9m
Locality: Pupukea, Oahu, 9-10m, Hawaii, USA, Pacific, various, nocturnal in ledges or exposed. Length: 15-16mm. Photographer: Scott Johnson.
Scott Johnson
uwkwaj@yahoo.com
Johnson, S., 2008 (Feb 11) Re: New species of Dendrodoris? from sthn Queensland [1]. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/21368Thanks Scott,
Bill Rudman
Rudman, W.B., 2008 (Feb 11). Comment on Re: New species of Dendrodoris? from sthn Queensland [1] by Scott Johnson. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/21368Re: New species of Dendrodoris? from sthn Queensland [1]
February 11, 2008
From: Scott Johnson
Concerning message #21076:
Hi Bill,
I did not plan to add to your backlog this month, but I got excited seeing Gary Cobb's recent species from southern Queensland. It looks like a species I have from Hawaii, although it appears as though Gary's are considerably larger. The longest one I recorded was about 18 mm. I'm afraid I cannot help with an ID, however, since I never took a close look at the anatomy. I have this in my pile of unknowns with the label Sclerodoris? sp. In Hawaii, they are nocturnal, coming out of hiding at night to wander around, often in small ledges in basaltic cliffs and outcrops. I have shots of five specimens, which I will send in two messages [see also message #21368 ]. The data on the three included with this message follows:
h109-o01 11mm; 20 July 1979; Pupukea, Oahu, Hawaii; exposed on reef at night, 10m
h109-o02 14mm; 12 June 1978; Pupukea, Oahu, Hawaii; in ledge at night, 12m
h109-h03 18mm; 14 August 1980; Puako, Hawaii; in ledge at night, 9m
Locality: Pupukea and Puako, 9-12 m, Hawaii, Pacific, various, nocturnal in ledges and exposed. Length: 11-18 mm. Photographer: Scott Johnson.
Scott
uwkwaj@yahoo.com
Johnson, S., 2008 (Feb 11) Re: New species of Dendrodoris? from sthn Queensland [1]. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/21367
Dear Scott,
It certainly looks the same as Gary's although in his photos I can't see the radiating ridges. I think I will put them all under a Sclerodoris ? sp.1 page under some one has a better idea - or some anatomical information.
Best wishes,
Bill Rudman
New species of Dendrodoris? from sthn Queensland [2]
February 9, 2008
From: Gary Cobb
Hi Bill
To accompany message #21076 here are some more photos showing some detail of the head and gills.
Locality: Old Woman Island, Mooloolaba, Sunshine Coast, 14 m, Queensland, Australia, Pacific Ocean, 27 October 2007, Subtidal. Length: 40 mm. Photographer: Gary Cobb.
Cheers
Gary Cobb
gary@nudibranch.com.au
Cobb, G.C., 2008 (Feb 9) New species of Dendrodoris? from sthn Queensland [2]. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/21077
Thanks Gary,
Bill Rudman
New species of Dendrodoris? from sthn Queensland [1]
February 9, 2008
From: Gary Cobb
Hi Bill and everyone!
I am pleased to announce to you that we have found a new species of Dendrodoris. When I first spotted it crawling along the substrate I thought it was a Dermatobranchus. After getting home and looking at the photos and ones I took just before ... it was discovered that it is a Dendrodoris.
Locality: Old Woman Island, Mooloolaba, Sunshine Coast, 14 m, Queensland, Australia, Pacific Ocean, 27 October 2007, Subtidal. Length: 40 mm. Photographer: Gary Cobb.
I will send you another message with more photos [message #21077 ]
Cheers,
Gary Cobb
gary@nudibranch.com.au
Cobb, G.C., 2008 (Feb 9) New species of Dendrodoris? from sthn Queensland [1]. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/21076
Dear Gary,
Thanks for this interesting find. It certainly looks superficially like the Dermatobranchus that Marshall & Willan (1999) identify as Dermatobranchus fortunata. Your animal seems to be identical with that illustrated by Atsushi Ono in Opisthobranchs of Ryukyu Islands as Sclerodoris sp. 1.
This leaves me with the task of discussing what I think it is. Firstly I would be interested in why you think it is a species of Dendrodoris? Certainly the flattened shelf-like oral 'tentacles' are similar to some structures found in radula-less dorids like the Phyllidiidae and Dendrodorididae but they are usually more closely associated with the mouth and possibly not homologous with the oral tentacles of the 'radulate' dorids. My feeling is that these structures in your animal are modified oral tentacles attached to the side of the head rather than modifications evolved from around the mouth.
I think the first thing we would need to do is have a look at the internal anatomy to see if there is a radula present. Thanks also for the additional photos in your second message [#21077]. Hopefully one of the many working on dorids at present can give us some clues to its identity.
Best wishes,
Bill Rudman
