蚂蟥属于环节动物门有环带亚门，全世界约有５００余种，我国有近百种。其中无吻的颚蛭目中的医蛭科、山蛭科和黄蛭科的一些种类与人类有着更直接的关系。它们不仅是传统的中药材，而且在现代医药学上也具有广阔的应用前景，所以人们统称这些蛭类为医学蛭类。我国古代医书中已 The leech is a ring-and-belt subphylum of annelids. There are about 500 species in the world and nearly 100 species in China. Among them, some species of the order Medicinal Branch, Hawthorne and Astragalus in the order of no kiss have a more direct relationship with humans. They are not only traditional Chinese herbal medicines, but also have broad application prospects in modern medicine. Therefore, people collectively call these apes as medical apes. Ancient Chinese medical books have