Chromodoris preciosa

Image courtesy of Jeffrey de Guzman
Anilao, Philippines
Nikon D300, Sea and Sea Housing, Nikkor 105mm VR macro, Twin Inon Z240 strobes
Chromodoris preciosa (Kelaart, 1853)

Wow - knock me over! Jeffrey's pic is a knock-out prissy chromodoris. This species has three color bands along the edge of the mantle - a thin white band at the edge, then a band of deep red, and inside that, a band of yellow-orange. The mantle is highly variable in background color ranging from a uniform white (as seen in Gordon's shot) to animals in which the white pigment forms irregular patches on a more translucent background. Sometimes the translucent patches can be distinctly reddish. Some specimens can also have small brownish spots scattered all over the central part of the mantle. In all cases the gill and rhinophores are translucent red with characteristic white edged lamellae. In Marli's photo on The Sea Slug Forum , you can see the series of mantle glands which contain caustic chemical metabolites used in the animals defense. Although not as brightly colored as some of the aposomatic species, the three bright bands along the edge of the mantle, function in this role.

This species is common in Australia, New Caledonia, Papua New Guinea, the Philippines, Malaysia, Vanuatu and Tonga.

Dave Behrens
Gig Harbor, Washington
Feb., 2010

Jeff Guzman on location

Jeffrey de Guzman is a 39-year old technical diver. He was certified as a NAUI open water diver in 1986. In May 2006, Jeffrey made his first venture into u/w photography with a Canon S80 compact camera. He has since upgraded to a DSLR. Examples of his work have appeared in major publications, such as Australasia Scuba Diver Magazine, Asian Diver Magazine, Popular Photography Magazine, the Padi Project Aware Website, Padi Newsletters, Neville Coleman's Nudibranch Encyclopedia, Indo Pacific Nudibranchs and Sea Slugs, Newsweek, the National Geographic Daily Dozen and three Canon Photo of the Month. Jeffrey was chosen as the Featured Photographer at for the month of February 2008, and as the Inon Featured Photographer for July 2008.

In 2009, Jeff won 2nd place (Super Macro Traditional) in Our World Underwater. 1st place in Macro Category Scuba Diver Australasia TTL.

Jeff hopes to house his new Nikon D3x in the near future.

Send Jeff email at

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

Send Dave email at

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