Wow, another new one! This newly discovered species does not occur in any of the recent monographs on Indo-Pacific Nudibranchs, including Indo-Pacific Nudibranchs and Sea Slugs by Gosliner, Behrens and Valdes.
At first I thought it might be Thecacera pennigera as seen on Bill Rudman's Sea Slug Forum without its characteristic black specks, but no, that has never been reported. John's species here is white with small orange specks, and a white patch at the tip of the rhinophores, extra-rhinophoral appendages, the gill and the extra-branchial appendages. The extended genital aperture is visible on the right side of the animal (left side of the photo).
A short video of the animal can be by clicking here . This being the only photo we are aware of, sets the only known locality as Milne Bay, Papua New Guinea.
BEEN DIVING SINCE 1983 AND HAVE OVER 3500 DIVE LOGGED. I HAVE BEEN TO MOST EVERY WARM WATER DISTINATION. BORNEO , THAILAND,SOLOMONS,PNG,PHILLIPINES,RED SEA,INDONESIA,MEXICO,COSTA RICA. I HAVE DONE THE BIG ANIMALS EARLY ON BUT FIND IT MOST REWARDING TO GO ON TRIPS WITH RODGER STEENE AND NEVILLE COLEMAN AND FIND THE NEVER BEFORE SEEN LITTLE NUDI'S.
MY FAVORITE PLACE IS MILNE BAY , PNG ON BOARD THE CHERTAN AND FROM THE TAWALI RESORT WHERE I HAVE A TIME SHARE HOUSE, BUT ANILOA ,PI IS ALSO A FAVORITE. IM MOSTLY SHOOTING HD MACRO VDO BUT DO STILLS ALSO AS A BACKUP. FROM SAME CAMCORDER.
THIS PICTURE IS AT TAWALI WITH DIVE BUDDYS. LIVE AND LOVE THE OUTDOORS. LIVED IN RUNNING SPRINGS, CA FOR PAST 40 YEARS HAVE LIVED
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Webmaster's Notes: John Greenamyer probably doesn't need an introduction to most sluggers. John has been contributing videos to the site for some time! In fact, the Thecacera video above will be John's 65th presentation on the Slug Site! Pretty incredible when you think about it, to give up taking video of big guys to video our little friends which I believe is up to the challenge of taking video of the larger animals if you are fortunate to find any nowadays! John has been an inspiration along with Alan Grant for prompting my own entry into the world of High Definition Video back in 2006. I am very thankful for the guidance given by both and have never looked back! As the ol' saying goes, it just gets better and better (especially when you are looking at John's videos!).
San Diego, Calif