Miracidium Drilled Eggs的意思|示意

毛蚴钻出卵 Trematoda larvae of the early animals, often within a fully developed eggs. Miracidium Duocheng conical or pear-shaped, the surface is there are many cilia, there mouth and digestive system. Miracidium eggs containing feces row with the host terminal to the water, miracidium drilled eggs, swimming in the water encountered intermediate host (usually snails), which drill into the further development of their body, or death. Some species, such as the China branch Metorchis (ClonorchisinenAsis), containing miracidium snails eat the eggs were into the body and then continue to develop.