User blog comment:Plexioth- xD/Monster Hunter 3 Ultimate/@comment-4563270-20120929045548/@comment-4212769-20121001102230

Actually Stygian Zinogre is in Japanese (Romaji) "Jinouga Ashu". "Ashu" is a term found at Pink Rathian and Azure Rathalos, too, it means "Subspecies" what means it is the extra name of every Subspecies.

Stygian Zinogre is "Jinouga Subspecies" in Japanese.

@AWC: Monster with Rare (Rathian, Rathalos, Nargacuga, Lagiacrus...) have normally a close relative that is a subspecies. Rare Species come only when a normal subspecies came out before (or at the same time like Lagiacrus).