During the years 1998 - 2001 was carried out the research on gregarines of some invertebrate of Slovakia. During this study were found some eugregarines in the gut of Myriapods and 5 of them were determined to species level: Stenophora caudata Lipa, 1967; Stenophora juli (Frantzius, 1846) Labbé, 1899; Stenophora julipusilli (Leidy, 1853) Crawley, 1903; Stenophora orthomorphae Lipa, 1967; Actinocephalus dujardini Schneider, 1875. All the recorded taxons of gregarines are new for the fauna of Slovakia. New host taxons were recorded for some of them.