Mouth that has the characteristics simmilar to that of a snake

- two to four independently moving fangs
- smaller gripping teeth on bottom jaw
- tubular glottis for breathing separate from throat hole
- tongue sheath
- forked tongue that tucks into the sheath
- Muscular throat muscles visible from mouth
- holes on top of mouth leading to Jacob's organ and nostrils

Alternatively
- fangs with venum connecting tubes
- fangs with venum canals