Is there a swatch for scales? Such as scales on a fish or a snake?
I asked because I'm drawing a creature that has scales for my comic book series,"The Adventures of Bo Tanik."
There isn't a preset shape library for scales, but you can easily make your own using Adobe Capture. (Adobe Capture CC | Edit photos, shapes to vectors and graphics
Find an outline image of scales (or make your own), then take a photo of it with Adobe Capture.
Convert it into a shape and add it to your Illustrator Draw library.
Then you can edit and stamp down the scale image.
NOTE: You may want to do that on a separate layer in order to keep more options for compositing later on.