World checklist of freshwater Nematomorpha species

The checklist includes a list of all currently known and accepted species of freshwater hairworms (Nematomorpha), assembled in the Freshwater Animal Diversity Assessment (FADA) project. Nematomorpha are parasites of terrestrial (in few cases aquatic) insects. For sexual reproduction, they leave their host by driving it into water and emerging there. Five species are marine, 356 species live in freshwater. Horsehair worms are found in many different aquatic habitats throughout the world.

本清单收录了淡水线虫动物门（Nematomorpha）所有已知并被广泛认可的物种列表，该列表由淡水动物多样性评估（FADA）项目汇编而成。Nematomorpha 为陆生昆虫（少数情况下为水生昆虫）的寄生虫。为了进行有性繁殖，它们通过将宿主驱入水中并从那里出现的方式离开宿主。其中五种物种为海洋物种，356种物种生活在淡水中。马线虫在世界各地的众多水生栖息地均有分布。