According to the description, the fish you bought may be a kind of carp, called Mishima scale, also called mirror carp. Three scales are a kind of carp. There are no scales on the body surface, but there are some mucus, usually two pairs of whiskers. This kind of fish is usually found in fresh water in Europe and North America, and may also exist in Jialing River.

However, in order to identify this fish accurately, it is best to provide more specific descriptions or pictures to determine its scientific name more accurately. At the same time, please note that not all wild fish are suitable for eating, so it is best to confirm whether the fish is safe to eat before eating.