User blog comment:Kogath/Monster Hunter X Discussion/@comment-26532315-20150910093655/@comment-5167887-20150910180138

Well Blangonga already has quite a similar moveset with Rajang, apart from the Blanka rolling jump. The stance it has when performing his snow breath attack is the same as Raj's thunder beam (in calm mode). One of the few difference between them is that instead of having a rolling jump, Blangonga has a digging attack.

IMO Raj could as well have been a legit Blangonga Subspecies, given their skeleton and their pattern.