needs help with Nudibranch ID

[amrala]

Hello!

Gents i need help with the attached Nudibranch/Worm ID , and i will be thankful if also anyone can provide me with a book name for identifying the Nudi's Id

thanks


IMG0060_1:
F/4,1/60s,flash on
ISO100,EXP -1,AWB,Macro on
Canon G11

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IMG0108_1:
F/5.6,1/60s,flash on
ISO200,EXP -1,AWB,Macro on
Canon G11

[Kevin Lee]

Hi Amrala,

Please tell us where you photographed these animals as habitat can be helpful in identifying opisthobranchs.

Your first image, to my eyes, resembles Phyllodesmium crypticum, though this family of nudibranchs can be very difficult to distinguish, one from another. In fact, here's a similar slug that I photographed in Raja Ampat.

http://www.diverkevin.com/Asia-Diving/R ... 1458_ULXbp

Your flatworm is a nice specimen but, alas, although hundreds, nay thousands of flatworms have been photographed, most polyclads remain undescribed and I do not see an immediate ID on yours in the references I have. I would invite you to check the web for further research, starting with:

http://www.nudipixel.com (excellent online reference for slug ID)

and particularly for flatworms:

http://www.nudipixel.net/pictures/flatworms/

Also, the Sea Slug Forum (http://www.seaslugforum.net/), although inactive presently, remains a great reservoir of scientific knowledge about sea slugs.

The best publication for identifying opisthobranchs (sea slugs) is, in my estimation, "Indo-Pacific Nudibranchs and Sea Slugs", by Gosliner, Behrens, & Valdes. Here's a link to the book:

http://seachallengers.com/index.cfm?catID=3&itemID=446

For flatworms and all around general ID, I would recommend the recently published book, "Reef Creature Identification: Tropical Pacific", by Humann and Deloach.

Best wishes,
Kevin Lee

[scottg]

wow, beautiful flatworm!

Kev, I'm going to guess the photos were taken near Saudi arabia, but I could be wrong...

[amrala]

Thanks Kiven and Scott,

the 2 picts have been taken in Jeddah , Saudi Arabia in shore dive the depth was around 50-64ft night dive and am assuming they will just appear in night dive because when i put my light on them they start to run away and i was not yet started to get picts

am trying to work on my compositions as scott advise , the 2 picts are cropped

[Kevin Lee]

Hi Amrala,

Nudie expert, David Behrens, suggested this web reference for flatworms:

http://www.rzuser.uni-heidelberg.de/~bu6/index.html

If you look up flatworms in your region, the specimen you photographed is apprently Pseudobiceros fulgor. Please book mark this link for future reference.

Cheers,

Kevin

[amrala]

Thanks Kevin and David

i really appreciated
thanks again