Brinewolves are a mob that I made up (and probably wont make a mod of lol). This is what my fursona, Dino is except she does have one green eye. Brinewolves would rarely spawn near the far lands and would have teleportation abilities but not much else. You would not be able to tame them either.
Brinewolves would also be a bit larger than normal wolves.

I modeled and (poorly) rigged this in a couple of hours because I was feeling special.

Model in Blender above.