User blog comment:Kogath/Monster Hunter: World Discussion/@comment-4702773-20180106042104/@comment-27975092-20180106221052

his face looks like a viperfish one. I'm not sure about the crimson fatalis helmet but he clearly is wearing at least the lower jaw of some monster and his spiky tongue is its actual jaw. Also it looks like this concept art : https://i.imgur.com/rx9XJFW.jpg