蚯蚓,通称地龙,俗名叫曲蟮,全身出一环一环的体节组成。如果仔细地观察,还可以看到每个体节上有少量的刚毛,靠着刚毛的支撑,虫体作前引后仲的缓慢运动,所以,它在动物界的地位是属于环节动物门的毛足纲,寡毛目。这类动物有陆生和水生两大类。现在人们进行养殖的全是陆生蚯蚓。 Earthworm, commonly known as the earthworm, known as the Qu folk, the body out of a ring section of the body composition. If you look carefully, you can also see that there is a small amount of bristles on each of the body segments. By virtue of the support of bristles, the parasite slowly moves forward and backward. Therefore, its position in the animal kingdom is that of the animal Foot, oligarchs head. These animals have terrestrial and aquatic two categories. Now people are breeding terrestrial earthworms.