Another old one. So old, I seem to have lost the actual FILE for it, which ticks me off to no end >.<

Anyways....the Cu Sith
"Cu Sith literally means fairy dog, this is the Highland equivalent.

In appearance the dog was green with long shaggy fur, it was roughly the size of large calf and not unusually it was considered dangerous to meet.

The creature was capable of hunting in silence, and would let out three barks, which could be heard from miles around.

Supernatural dogs are usually completely black or white with red ears, this is the only example of a green dog although green is the colour of the fairies."
----http://www.mysteriousbritain.co.uk/scotland/folklore/the-cait-sith-the-cu-sith.html

I forgot to give him shaggy fur....oh, well, I like the way it turned out, being an older piece and all.