Man, the World, calls each variation of canines a "species". I'm not so sure about that because virtually every "species" of "canid" that I know of can interbreed. Wolves can interbreed with coyotes and both can interbreed with "domesticated dogs". Recently, I saw a documentary about a Russian breeder who crossed dogs with golden jackals to get a superior drug sniffing dog.
The Bible says things reproduce "after his kind", so I personally believe that "wolves" are basically just another kind of dog and so are jackals, coyotes, dingoes etc.