Thecacera sp.

Image courtesy of Jim Black
Anilao, Philippines
Nikon D-300 in Subal Housing with Ikelite strobes.
Specimen found by Peri Paleracio
Copyright 2011, Jim Black

Thecacera sp. #4 (undescribed)
Flores, Indonesia

I sure hope the folks in Sea Slug Central (California Academy of Sciences) are keeping track of all these crazy new Thecacera's. Boy, I sure can't.

So here is another, that seems to be new, and is missing from Indo-Pacific Nudibranchs and Sea Slugs .

Although quite similar to Thecacera sp. 4 in Indo-Pacific Nudibranchs and Sea Slugs , there are subtle differences that need to be investigated. One is that Thecacera sp. 4 has dramatically fimbriate extra-rhinophoral sheaths. Aside from the obvious differences in color - purple on orange, rather than black on orange - the extrabranchial and extra-rhinophoral appendages are much shorter, in Peri Paleracio (above) specimen, photographed by Jim Black.

Don't be fooled by these look-a-likes.

Dave Behrens
Gig Harbor, Washington
Dec. , 2011
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Jim Black on location in in the Banda Sea

Jim is retired from US Airways after 27 years as a pilot..., flying Captain on an Airbus 330 Internationally.

Diving since 1970...with over 6000 dives logged. Shoots Nikon D-300 in Subal Housing with Ikelite strobes. Macro Mate on 105mm for supermacro.

Jim's photography has been featured in a number of books and publications including Helmut Debelius' Nudibranchs and Sea Snails of Gosliner, Behrens and Williams Coral Reef Animals of the Indo-Pacific. A photo of Jim petting a shark in "Sleeping Shark Caves" off Isla Mujeres Island, Mexico, taken by Amy Foster his significant other, recently appeared in Dave Behrens' Diving Guide to Cozumel, Cancun & The Riviera Maja.

Jim has been a solid supporter of the Slug Site since day one. His countless contributions put him near the top of the list of photographers who have greatly expanded our knowledge of sea slugs. There are a lot of kids in the formative stage of their education who are getting their first introduction to our sea slug friends via the great photographs Jim and other contributors have made to the site. My hat is off to Jim for making this presentation possible!

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WEBMASTER'S NOTES : Another great submission by Jim Black who continues to astound us with his uncanny ability to find and photograph slug images most of us probably aren't going to see in this lifetime!

From left to right, Terry Gosliner, Angle Valdes, Dave Behrens La Jolla, Calif.

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