Akura Vashimu Ecology

Disclamer: This is merely a plausible explanation for the monster(s) in this article, and should not be considered canon.

In-Game Information
(Only released in Japan and Asia so no American proof yet)

Taxonomy
The Akura Vashimu is an excellent example of a scorpion, which is an arachnid. It may have the same affect as the Daimyo Hermitaur in which it could be a normal scorpion but over time it grew to that size.