Two new species of Baikal nematodes of the genus Asperotobrihis (Nematoda: Enoplida: Tobrilidae)

Abstract. Two new species of Baikal nematodes of the genus Asperotobrilus Scoshin, 1991 are described. A. aculeatus sp. n. differs from the type species, A. asper Shoshin, 1991, in the large size, longer somstic setae, and supplemental organs in form of short somatic setae. A. investis sp. n. differs from A. asper in the shorter somatic and cephalic setae and larger annulation of cuticle. An improved diagnosis of the genus Asperotobrilus and a key to species are given.