水蛭,又俗称蚂蝗(Leech,Sangsue,Blutsauger),是一种栖生淡水中环节软体动物。口尾两端各具吸盘一个。自幼虫起就具有强烈的嗜血性,依靠吸盘牢固地吸附在动物的体表。我们在阿尔及利亚度过了一年一度的两个风斋节,这个时节正置盛夏酷热,气候干燥,缺水严重,人们多寻荫凉处避暑,积极寻水解渴,尤其居住在远离水源的农牧民更为突出,可知,除了自来水外,任何沟溪塘水都常常是水蛭栖息的场所,一旦喝了这种水,便有可能导致水蛭寄生。国内已见王鹏、张纳文、卢文新、林月葵、杨福成等之报告,今又报告援阿两年1979 Leech, also known as Leech (Sangsue, Blutsauger), is a kind of habitat freshwater middle part of molluscs. Both ends of the mouth and tail sucker. Since the larvae have a strong hemophilia, relying on the sucker firmly adsorbed on the animal’s body surface. We spent two annual Eid al-Fitr days in Algeria. This is the time when hot summer, dry climate and lack of water are serious. People seek shade in the shade and actively seek water and quench their thirst. Especially living in far away from water People are more prominent, we can see that, in addition to tap water, any ditch pond water is often a habitat for leeches, once drank this water, it may lead to leech parasitism. The reports of Wang Peng, Zhang Nawen, Lu Wenxin, Lin Yuekui and Yang Fucheng have already been reported in China. They also reported this two-year aid 1979