Well, what exactly would you like us to do, 
Makar?  Add references to the books? Add other creatures?
Estelyn, Makar has also included the Easterlings, certainly the race of men. I wonder if this would lead into a discussion of what constitutes a beast or sentient life in Middle-earth.   But I am not sure what is meant by this phrase:
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				There are no book and chapter references yet and the races and subraces of men, vala, and elves are really included.
			
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 They aren't listed, so are you trying to include all forms of animate life, Makar? Given that orcs--or some of them--are twisted elves, it becomes difficult to define them as beasts without including unfallen elves also, doesn't it?