Nembrotha yonowae

Image courtesy of Winfreid Werzmirzowsky
Nikon RS

Nembrotha yonowae Goethel & Debelius, 1992

Well if there was ever a sea slug that advertised it nasty taste to the predatory neighborhood, it is this one. Man those bright orange spots just leap off the notum, giving any wanton predator a hint of what any attach might result in. This is an excellent example of "aposomatic" coloration.

While we included N. yonowae in NSSI 2nd edition as a valid species, there is some disagreement among our colleagues as to its validity (see Bill Rudman's Sea Slug Forum). The absence of a type specimen really bothers me, not to mention the fact that the description was published in a non-scientific magazine without peer review.

Describing this species based on the bright orange spots circled with a yellow to green ring, and the orange on the rhinophores and foot margin seems risky given the variation we see in the closely-related N. kubaryana. Wish they were all this easy. Still wish we had a type specimen and a complete description.

Hard to say if these orange-red spotted Nembrotha's will ever be properly sorted out under the circumstances, but I must admit that Winfried's critter shown here is quite spectacular.

Dave Behrens
Sammamish, WA 98074
Nov., 2020
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Winfried Werzmirzowsky and Webmaster
Frankfurt, Germany
April, 2004

Webmaster's Notes:

I first met Winfried many years ago back at Dive Paradise, Tulamben, Bali, Indonesia when we had adjoining rooms. Being somewhat in awe of his orderly arrangement of cameras and dive equipment, I was at first hesitant to strike up a conversation of in view of my less than organized gear strewn about my room. Perfect odd couple I though until my buddy Jerry Allen introduced us and I never looked back! Winfried's underwater photographic zeal is best exemplified by an incident on a succeeding trip to Bali. His Nikon RS teleconverter failed and he decided to go back to Germany to have it repaired. What a shame I said, to abort a trip over a part failure! Winfried replied, "who's aborting, I will be back in a few days." Sure enough he reappeared in four days with a repaired teleconverter. At that time there was only two technicians in the world who would work on RS cameras and one of them resided in Germany, so thats where Winfreid headed! Being a retired Lufthansa pilot certainly facilitated his journey, but it still required a lot of fortitude and dedication on his part.

So, when invited to visit him in Germany and see his images of Indonesia, I grabbed the wife and we took off to Germany in April of 2004. Who would of though we would fly half way around the world to see underwater images?? Well, it was certainly worth it! Winfried's images have appeared in several publications, the one that presently comes to mind is "Crustacea-Guide of the World" by Helmut Debelius.

What more can be said, Winfried is a first rate underwater photographer!

The most difficult aspect of getting to know Winfreid for me was pronouncing his last name! I eventually gave up! To me he has always been and will be Winfreid! I count myself very fortunate in this liftime to have made his acquaintance!

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Attention all you Sluggers, and you know who you are!

The NSSI 2nd edition is now available in ebook PDF and book form . The hard back version will become available Nov. 1st. Both will cost $65 (individually).

You will need to jump through a few hoops to get the electronic version as pdf distribution is protected by Adobe ID!! Please read the following to enable reading your electronic purchase!

This new 2nd Edition is updated and reorganized, including 185 new species. Among other features, the new edition includes additional photographs of species, an identification key, and an up-to-date classification reflecting the latest evolutionary relationships. The Indo-Pacific represents the largest expanse of tropical ocean in the world, stretching from the Indian Ocean coast of southern Africa and the Red Sea to the central Pacific of the Hawaiian Islands, Easter Island and the Marquesas.

This region supports the most diverse marine fauna of any place in the world for most groups of marine organisms. The nudibranchs and sea slugs are no exception to this rule; there are about 3,000 described species of these organisms in the world and at least 40% of these have been found exclusively in the Indo-Pacific tropics. This book illustrates 2,138 Indo-Pacific nudibranchs and sea slugs, including many undescribed species.

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

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