抄録
Many things about the life cycle of the land leech are unknown, so we researched the life history by breeding indoors. The results were that the numbers of the egg capsules laid once were between 1 and 9, and the numbers of the young hatched were between 1 and 8. It needed about twenty days from feeding blood to laying eggs, one month from laying eggs to hatching, and two months from feeding blood to hatching. And it became clear that the hatched individual could not lay eggs if it had not fed blood several times, and it could lay eggs again, if once it had fed blood after laying eggs.
