I think what Kapu here is trying to say, if I may elaborate. He's not just looking for mythical lore surrounding creatures, no doubt there is a story for wolves and the like.

I think what he really wants is the fantastical creature's from children's stories, ancient legend, and myth. Pure magical whim, Fantasy so to speak. Things that could not, possibly exist such as the phoenix, a mystical being made of fire, things that aren't likely to exist anyways. Mythical lore surrounding a normal earth creature doesn't quite fit the profile.

Though to speculate kapu, I don't see any reason to be unable to half-shift into werewolf. 

"The first part, wer, translates as "man". The second half, wulf, is the ancestor of "wolf". An alternative derivation of the word has the first part coming from Old English weri (to wear), making the full form in this case: wearer of wolf skin."

The first is basically a man-wolf, meaning he is more man than beast, the second wearer of wolf skin being the full transformation, Albeit there is a lot of lore surrounding werewolves.