The Unnamed Crab Demon was a minor character seen in the opening of the animated film, Devilman: The Birth.
The demon had a large red and pink shell covering his body. He had several heads, one on its crotch and two on small antenna with another pair of smaller antenna behind, and a final head on the main body. He has six long legs and two claws, the right of claw being far larger than the other.
He was shown to possesses great strength in his claws capable of tearing a foe in half.
He was among the many demons that ambushed the descending Angels at the beginning of the film. He plucks one of the out the sky and pulls it in half with his claws. It's unknown if he survived the attack from the Angels ultimate attack, or if he went into hibernation.
- The demon was later seen in an illustration by Toshio Maeda for the art book The Devilman, though sadly it remained unnamed.