Also known as crab-eating bean-toothed eel, "Minnan fish dragon map is a kind of crab-eating bean-toothed eel, also known as Bolu bean-toothed snake eel, and also belongs to a kind of edible fish. Its meat quality is very fat and its nutritional value is extremely high. Its vitality is very strong, even if it doesn't eat for a long time, it will live well. They usually live in tropical areas, can tolerate fresh water and often enter estuaries or lakes.

Microbes such as Eupolyphaga Seu Steleophaga are rarely eaten by human beings, but they can be used as medicine, which has the practical effects of clearing away heat and toxic materials, soothing the liver and dredging the pulse, and is related to the treatment of lung heat, high fever, dyspnea and cough, and can also lower human body temperature and reduce fever. Earth dragon has the effect of clearing away heat. Longtu can be used to treat fever, febrile convulsion, madness, delirium and other symptoms. Longtu has the function of dredging meridians. Longtu can generally be used to treat joint pain, hemiplegia, paralysis, dysmenorrhea, irregular menstruation and other symptoms caused by meridian block. Longtu has lipid-lowering effect, and Longtu has anticoagulant effect, which can effectively prevent and treat atherosclerosis.