Siphopteron sp.5

Image courtesy of Lawrence Neal
Andaman Sea of Western Thailand
Image courtesy of Lawrence Neal
Andaman Sea of Western Thailand

Siphopteron sp.5 (in NSSI 2nd Edition)

Well here is another colorful Siphopteron from the Indian Ocean, Love these little guys.

As Lawrence explained to us - "These tiny (less than 5 mm) slugs appear every now and again on sand compacted rocks close to shore in about 8 meters of water. They vary in color from pale lemon to a stronger yellow color, moving continuously in a rather jerky seesawing manner. The pictures shown here were taken with a wet-lens attachment on the front of a 105-mm macro lens. Needless to say, a lot of shots had to be taken in order to get just one or two usable photos."

Somewhat similar to Siphopteron nigromarginatum there are more brown lines on the parapodia and visceral mass. Some specimens as seen here have an opaque white region over the visceral mass.

In this last shot to the left - could this be a pair mating? Maybe so. Nice catch.

Dave Behrens
Sammamish, WA 98074
Mar., 2021
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Lawrence Neal

Lawrence Neal is a British freelance professional based in Bangkok, Thailand. He escapes the city for coastal waters in the south of the country whenever time and global pandemics permit. Apart from diving and underwater photography, Lawrence enjoys travel, trekking, landscape photography, fitness and biohacking.

He currently uses a Nikon d850 with a 105-mm macro lens, a pair of Backscatter MF-1 strobes and assorted wet lenses.

Lawrence Neal
Bangkok, Thailand
Mar. 2021

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Attention all you Sluggers, and you know who you are!

The NSSI 2nd edition is now available in ebook PDF and book form . The hard back version will become available Nov. 1st. Both will cost $65 (individually).

You will need to jump through a few hoops to get the electronic version as pdf distribution is protected by Adobe ID!! Please read the following to enable reading your electronic purchase!

This new 2nd Edition is updated and reorganized, including 185 new species. Among other features, the new edition includes additional photographs of species, an identification key, and an up-to-date classification reflecting the latest evolutionary relationships. The Indo-Pacific represents the largest expanse of tropical ocean in the world, stretching from the Indian Ocean coast of southern Africa and the Red Sea to the central Pacific of the Hawaiian Islands, Easter Island and the Marquesas.

This region supports the most diverse marine fauna of any place in the world for most groups of marine organisms. The nudibranchs and sea slugs are no exception to this rule; there are about 3,000 described species of these organisms in the world and at least 40% of these have been found exclusively in the Indo-Pacific tropics. This book illustrates 2,138 Indo-Pacific nudibranchs and sea slugs, including many undescribed species.

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

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