In Yugoslavia Oligochaeta have been relatively inadequately reseached, especially the Enchytraeidae family, and that was the main motive for making this catalogue. The classification of higher taxonomic units (till families), which representatives can be found in Yugoslavia, has been made on the basis of the system made by Jamieson (1978). The classification of genera withmin the families Lumbriculidae, Tubi-ficidae, Naididae and Aeolosomatidae has been made according to Brinkhurst and Jamieson (1971), and the systematy of families has been made according to Nielsen and C h r i stensen (1959). The taxonomic division of earthworms (Lumbricidae) is still a large problem in the systematy of Oligochaeta. The Aeolosomatidae family hasn't got the entirely clear posi¬tion in the systematy of Annelida, although there is a tendency to include it into the group of Archiannelida. However, because the position of this group isn't clear enough in the systematy of Annelida, the Aeolosomatidae family is incladed in this rewiew.