Abstract
Aphelenchoides arcticus n. sp. and A. parasaprophilus n. sp., collected from soil arounc roots of moss, are described and figured. Both species are closely related to, and are compared with A. parietinus (Bastian, 1865) Steiner, 1932; A. helophilus (de Man, 1880) T. Goodey, 1933; A. blastophthorus Franklin, 1952; A. saprophilus Franklin, 1957; A. composticola Franklin, 1957; A. sacchari Hooper. 1958; and A. subparietinus Sanwal, 1961.