He\she is a crab-like monster from the Metroid games. When you face this thing, you find out it has kids, three of them. In your fight, he spays "web" at you which can make you go slower. When he dies, his kids come back and eat him.
Wow, Draygon is very hard to beat.
Not to be confused with the Russian mandrakes or the Arabian wyrms, the draygon is a winged fire breathing serpentine specifically from Ireland.
Patches O'Reilly killed the draygon.