[quote=@Sikako J]
With the mention of sub-species are we trying to stick as close as we can to Human Kind? I had an idea of a Parasitic race that using a base race as it's "Outter Body". 
[/quote]

Don't quote me on this, but I think that human sub-species means either sticking as close to le homo sapiens as possible or using standard fantasy races (elves, dwarves, ect). Again, this is just what I got out of it.