User blog comment:Kogath/Monster Hunter X Discussion/@comment-25516746-20150903031428

Dunno if you people are already working on it, but the following monsters are confirmed to be in MHX, but haven't been added to the monster list yet: Kelbi, Ceanataur, Uroktor, Ludroth and Gypceros.

I spotted Kelbis in the Misty Peaks during a gameplay video last month (I think it was against Narga?). The other four appeared in the recent scans.