A nocturne is a piece of music that tries to capture the feeling of night. Chosen in this case because, as you can see, Nocturne has black as his main colour. If I ever settle on what I want to call these creatures, I've decided that Nocturne will be a rare, Inverted whatsit. Out of the whole lot of them, this fellow and Rhapsody are the two I'd most like to make into suits someday. Still a lot of practice to go yet though. :P