The toxicity of Henan white snake will die at the age of 48 if it is not treated. Topped snake, scientific name Agkistrodon halys, is a poisonous snake. After being bitten by Agkistrodon halys, you should inject antibiotic poison serum immediately, which has special effect on snake bite. If you don't treat it, you will definitely die. Agkistrodon halys, belonging to Agkistrodon, Agkistrodon. Agkistrodon halys is 60-70 cm long with a slightly triangular head. The boundary with the neck is obvious; There is a buccal fossa between the eyes and the nose. There is a brown longitudinal belt from the back of the eyes to the neck, and a thin yellow and white line on the upper edge. The body is thick, the tail is short, and the end is tapered. There are a pair of conical tubular fangs opposite to the maxilla in the front of the oral cavity; There are eight pairs of prepared fangs at the back. Different body colors can gradually change from light brown to reddish brown. The back is taupe to brown, with black spots on the back of the head, and the abdomen is taupe to taupe with black spots.