The infraction experiment of larvae Dinobdella to rabbit,albino rat,pigeon and bullfrog shows that neither aves nor amphibian is the host of the nasal leech.

• 实验室内用鼻蛭幼体分别对家兔、大白鼠、家鸽、牛蛙进行感染实验,结果表明:鸟类、两栖类不是鼻蛭的寄主,即使人为地进行感染,鼻蛭也不能正常生长;