Detail this asset from Unity Store: Original Link
This is a paid asset, but now you can download Fantasy Worm Free.
An ugly fantasy worm, ready to fight. 9 animations included.
Texture size: 1024*1024, color only.
Triangle numbers: 1534
You can also observe poly distribution, uv mapping, and skeleton/skinning on the screenshots.
1.1 version: optimized worm added.