![](http://www.underwaterphotography.com/upload/up/Competition/40682.jpg)
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Marco Faimali...U-UFO!!.....(Underwater Unidentified Flying Organism)
This species of very large, strong-swimming sea slug (spanish dancer, Hexabranchus sanguineus) is one of the largest of all nudibranchs: in this case more than 60 cm in length.
![](http://www.underwaterphotography.com/upload/up/Competition/40743.jpg)
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Marco Faimali..under my soft umbrella!!
![](http://www.underwaterphotography.com/upload/up/Competition/40886.jpg)
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Marco FaimaliDjibouti giant (Hexabranchus sanguineus) one of the world's biggest nudibranch (in this case more then 40 cm in length).
![](http://www.underwaterphotography.com/upload/up/Competition/41610.jpg)
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Marco FaimaliAnother macro close-up shot of the sea anemone Radianthus magnifica
![](http://www.underwaterphotography.com/upload/up/Competition/43157.jpg)
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Marco Faimaliinter-species connection!
![](http://www.underwaterphotography.com/upload/up/Competition/141943.jpg)
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Raffaele LivorneseEmperor shrimp on nudibranch
![](http://www.underwaterphotography.com/upload/up/Competition/149069.jpg)
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Martin GenovClown fish in Nosy Be, Olympus TG-6, Isotta housing, Backscatter M52 wide lens, 2x INON S-2000