Siphopteron nakakatuwa

Images courtesy of Gordon Tillen
Dauin, Negros Oriental, Philippines

Photo by Gordon Tillen
Siphopteron nakakatuwa Ong & Gosliner in Ong, Hallas & Gosliner, 2017

Body orange with opaque white patches and orange parapodial margins; posterior extension of the mantle elongate, brown with pigment extending below the base; posterior end of the headshield elongate, brown; foot with a medial white line. Gordon's specimen is highly typical of the species.

Siphopteron nakakatuwa lives on clean sandy habitats in depths to 7 m. It reaches 8 mm in length, and today is known only from the Philippines and Indonesia.


Ong E., Hallas J.M. & Gosliner T.M. (2017). Like a bat out of heaven: the phylogeny and diversity of the bat-winged slugs (Heterobranchia: Gastropteridae). Zoological Journal of the Linnean Society. 180(4): 755-789., available online at page(s): 771, figs 1G, H, 9E, F, 12, 1

Dave Behrens
Sammamish, WA 98074
Nov. 2022
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Gordon on location

My diving career started in the cold lakes of northern Wisconsin during summer camp in 1964. I have now logged over 3000 dives. My passion for this hobby/sport kicked into high gear around 2006 when I got my first underwater camera and went to Taveuni, Fiji. It was a Canon SD 550 point and shoot. Certainly limited for wide angle, but it took amazing pictures of Nudibranchs! It ignited an obsession for underwater photography and nudi hunting that has taken me to all the corners of the Coral Triangle.

I retired and moved to the Philippines in 2008 to avoid those long international flights and have been blessed to be here for the last 14 years. I chose the island of Negros Oriental for many reasons, but mostly for the easy access to great macro/critter photography. Also being the frogfish capital was the bonus round. And the 600 plus species of nudibranchs that call it home. Being in the center of the best diving on planet earth is a dream come true.

So, as they say " I'm living the life".

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

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