Tambja affinis

Images courtesy of Gordon Tillen
Kirby's Rock, Anilao, Batangas, Philippines

Photo by Gordon Tillen
Tambja affinis (Eliot, 1904)

The genus Tambja is a member of Nembrothinae and constitutes the largest genus in the group. Several recent studies have been published by Marta Pola and her co-researchers but have concluded that more work is needed to better understand the higher systematics of the group.

As these spectacular images demonstrate, this is a very flamboyant species. Like other members of this genus, T. affinis is large, reaching 50 mm in length. The body is indigo to dark bluish black with a series of longitudinal yellow-green lines on the notum and sides. There is a lighter spot between the rhinophores, on the rhinophoral sheaths, and at the anterior base of the gill. The rhinophores and gill are black and the gill is outlined in green.

Previous documented observations set its geographic territory as Red Sea and Indian Ocean Gordan's fantastic photos here add Aniloa, Batangas, Philippines to its range.


Pola, Marta & Valles, Yvonne & Cervera, Juan Lucas & Medina, Monica & Gosliner, Terrence. (2006). Taxonomic status of Tambja abdere and Tambja fusca based on morphological and molecular evidence, with comments on the phylogeny of the subfamily Nembrothinae (Nudibranchia, Polyceridae). Annales Zoologici Fennici. 43. 52-64.

Dave Behrens
New Braunfels, TX
May., 2024
Send Dave email at davidwbehrens@gmail.com
Dave and Peg in Texas motif prior to move from
Washington to Texas

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".

Send Gordon email at gtillen@mac.com

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

Send Dave email at davidwbehrens@gmail.com
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