This week we have another Caulerpa mimicking sacoglossid . This wonderful critter is one of three species of sap sucking slugs that have successfully evolved a resemblance to its food preference, the green algae, Caulerpa racemosa. Last week we saw a species never seen before John found it. Stiliger smaragdinus can be found on page 73 of Indo-Pacific Nudibranchs and Sea Slugs. It chloroplast laden cerata form spheres on short stalk. Each ceras has a tiny tapering papillae at the tip. Various pigment spots can be seen on the surface of the body, ranging from white to yellow and dark green.
Like other species of Stiliger, the rhinophores are rolled. This species can reach 30 mm in length. Please refer to last week's critter, Stiliger sp., for a discussion of feeding, radular morphology and the retention of chloroplasts for photosynthetic by-product use.
What an amazing group of animals?
John was kind enough to provide us with a video of Stiliger smaragdinus .
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
Send John email at firstname.lastname@example.org
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 Tambja video above will be John's 71th 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