The pseudoscorpions (Pseudoscorpiones) from several types of environment in Roztocze (SE part of Poland) were studied. 13 species were collected from 11 types of habitats. 7 species were recorded from this region for the first time.
The invertebrates (Isopoda, Diplopoda, Pseudoscorpiones, Opiliones) from Mazurian Lake Region were studied. At present 11 species of Isopoda, 15 of Diplopoda, 10 of Pseudoscorpiones and 17 of Opiliones are known from this region.