Chromodoris cf. strigata
Order: NUDIBRANCHIA
Suborder: DORIDINA
Superfamily: EUDORIDOIDEA
Family: Chromodorididae
PHOTO
Kerama Is. near Okinawa in Japan. 20mm long, at 15m depth. May, 2000. Photo: Atsushi Ono.
RELATED TOPIC
See message below.
Authorship detailsRudman, W.B., 2000 (July 23) Chromodoris cf. strigata [In] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/chrocfstri
Related messages
Chromodoris colemani? from Exmouth, Western Australia
April 4, 2008
From: Bruce Potter
Dear Bill,
This is the 4th of the blue black and orange chromodorids from the Exmouth Navy Pier. [see also messages 20980, #20981, #20982,#20984 ].
Locality: Exmouth, 10 - 12 metres, Western Australia, Indian Ocean, 5 October 2007, under a jetty. Length: 30 mm. Photographer: Bruce Potter.
I am not at all sure about this one. It may be Chromodoris colemani.
Regards
Bruce Potter
bandppotter@bigpond.com
Potter, B., 2008 (Apr 4) Chromodoris colemani? from Exmouth, Western Australia. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/20983Dear Bruce,
This certainly looks like an animal from Western Australia that I identified for Clay Bryce as Chromodoris colemani [see message #899] but I don't think it is that species. I suspect it may be Chromodoris cf strigata . I am sorry that this may seem all a bit confusing but that is the state of play at present. What we need is a resident observer in a place where many of these species or 'colour forms' co-occur in respectable populations. Hopefully this will allow us to get an idea of the extent of their variability.
Best wishes,
Bill Rudman
Chromodoris cf. colemani? from Sulawesi
April 2, 2007
From: Sebastian Ferse
Dear Bill,
I found these two slugs on a night dive, on a rubble patch below a large staghorn coral colony, the rubble being overgrown by coralline and fleshy algae. I think these might be Chromodoris cf. colemani, but they lack the narrow white band along the mantle margin.
Locality: Lihage Island, southern slope, 10 m, North Sulawesi, Indonesia, Pacific Ocean, 30 March 2007, rubble area on upper reef slope. Length: 3.5 cm. Photographer: Sebastian Ferse.
Sebastian Ferse
sebastian.ferse@zmt-bremen.de
Ferse, S.C.A., 2007 (Apr 2) Chromodoris cf. colemani? from Sulawesi. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/19796
Dear Sebastian,
This is what I am calling Chromodoris cf strigata, but from its general shape, it may be a species of Hypselodoris. We won't know until its anatomy is looked at. These are both very tantalising photos as they both show two animals apparently feeding or investigating something very intently, but I have examined your high resolution scans carefully and can find no identifiable sign of food.
Best wishes,
Bill Rudman
Chromodoris cf strigata feeding
November 28, 2006
From: Jim Anderson
Dear Bill
Here are a couple of images of the animal your have called Chromodoris cf strigata seen in NE Sulawesi earlier this year.
Locality: Bunaken Timor, 15 m, N E Sulawesi, Indonesia, Celebes Sea, 11 July 2006, reef. Length: 35 mm approx. Photographer: Jim Anderson.
Jim Anderson
jander4454@gmail.com
Dear Jim,
Thanks for this find. I am pretty sure it shows this animal feeding on the light blue sponge which looks to be a Dysidea. It seems to be the same sponge that a specimen of C. strigata is feeding on in an earlier message [#14122]. Species of Chromodoris don't usually feed on dysideids, but this is one of a number of records we have on the Forum of C. strigata and C. cf strigata apparently breaking the rules.
Best wishes,
Bill Rudman
Chromodoris from the Solomon Islands
March 23, 2005
From: Scott Johnson
Hi Bill,
The attached Chromodoris was photographed at Guadalcanal, Solomon Islands, on a trip I made down there in 1994. The closest I could come to an ID is Chromodoris hamiltoni, which would be a considerable range extension from the eastern Indian Ocean. However, there is also some similarity to the Chromodoris cf strigata photographed by Bruce Potter, also from the Solomons.
Locality: Aruliho, Guadalcanal Island, Solomon Is. Depth: 12 m. Length: 15 mm. 8 April 1994. Exposed in ledge. Photographer: Scott Johnson.
Scott
uwkwaj@yahoo.com
Johnson, S., 2005 (Mar 23) Chromodoris from the Solomon Islands. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/13373Thanks Scott,
I agree it fits the 'species' I am calling Chromodoris cf. strigata. I am not sure if it is a colour form of true Chromodoris strigata or not. I have found that sometimes parts of the black lines in some chromodorids are replaced by orange in some animals. I guess it is a chemical malfunction somwhere. That is why I still tend to think this may be a form of C. strigata, although we now have 3 individuals all fairly consistent in their colour pattern.
Best wishes,
Bill Rudman
Chromodoris cf. strigata from Solomons
January 7, 2001
From: Bruce Potter
Dear Bill
I notice that there are a couple like this on your species list which may be a colour form of Chromodoris colemani. If so this find would add to its distribution. I found this on a mixed rubble site at about 8 meters, just on the outskirts of Honiara, Solomon Islands.
Bruce
bruce.potter@adventist.org.sb
Potter, B., 2001 (Jan 7) Chromodoris cf. strigata from Solomons. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/3372Dear Bruce,
There are a number of species with orange and black longitudinal lines. In some cases I think the black lines are replaced with orange lines in some individuals. This photo of yours looks more like the animal from Japan I have temporarily labelled Chromodoris cf. strigata.
Best wishes,
Bill Rudman
Chromodoris cf. strigata from Kerama Ids
July 25, 2000
From: Atsushi Ono
Dear Bill
I attached is similar to Chromodoris colemani, Chromodoris strigata ... it is one of the Chromodoris quadricolor group.
Data: At Kerama Is. near Okinawa in Japan. 20mm long, at 15m depth on a rock in May, 2000. Only one individual.
Could you help me to identify this for me?
Sincerely,
Atsushi Ono
ononini@cosmos.ne.jp
Ono, A., 2000 (Jul 25) Chromodoris cf. strigata from Kerama Ids. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/2772Dear Atsushi,
It is an interestng find. Although the orange lines suggest C. colemani, orange lines sometimes occur in other species. If we ignore the orange lines I would have said this was C. strigata. In C. colemani the orange border is submarginal. C. strigata, on the other hand, has a marginal orange border and has the same arrangement of greyish translucent patches as your specimen.
At this stage, I would tentatively suggest it is a colour form of C. strigata.
Best wishes,
Bill Rudman.
