Since the ray and ray, ray body shape is similar, many people can not distinguish, often mixed up.

Anciently, Shandong people called the Chinese ray for auxiliary fish, called the light ray for the earth fish, and sometimes mixed, these two kinds of stingray tail stinger poisonous, people were stung severe pain, redness, swelling, a burning sensation.

The tail stinger of the ray is also poisonous.

The tail sting of the hole ray is non-toxic.