User blog comment:Kogath/Monster Hunter X Discussion/@comment-3298463-20151127144816/@comment-5569775-20151127210141

@Drake: Yeah it's between the 2 faux heads, the front of it is the face, the 2 holes on it's back are similar to Jhens' blowholes and it's mouth is underground most of the time.

@Ohm: Given that the blue mucus/slime causes bones to stick to you, the bones on it's back that seem like a shell are likely bones it's using as armor by using the blue slime to keep it on.