User blog comment:Aandrew07/Discussion of the Week: Subspecies/@comment-76.109.221.23-20121024214947/@comment-4212769-20121025140253

You forget that the hunter's guild has a different meaning for "subspecies" that isn't biological. Or why is Black Diablos considered as subspecies?

Everything that gives different materials than the original on the same rank has to be signed as another "subspecies" (but HC monsters I guess). Instead of saying Mating Season Form or anything else all are just called Subspecies/Rare Species/Supremacy Species so that everyone knows exactly what he hunts. And Rare Species and Supremacy Species are just terms that refer to a second subspecies or a special subspecies.