EN
During studies on Collembola fauna of peatlands of the Pomeranian Lake District a great number of rare and interesting species were found. Among them, 22 species were recognised as tyrphobionts (species occurring only on peatlands) and 15 as postglacial relicts. Endonura tetrophtalma lusatica DUNGER, 1966, Isotoma blufusata FJELLBERG, 1978, Sminthurides parvulus (KRAUSBAUER, 1898), Dicyrtomina saundersi (LUBBOCK, 1862) and Heterosminthurus claviger (GISIN, 1958) are new to the Polish fauna.