Earthworms (Annelida: Polychaeta and oligochaeta) of the river Tisza and its tributaries

Faunistical data of the earthworm fauna of River Tisza and its tributaries were collected and revised by the author. The faunistical investigations have been concentrated to the Hungarian part of the Tisza River and its tributaries. Some data were from the material of the expeditions to Upper Part of the Tisza River and its tributaries in Ukraine and Rumania. Therefore, it would be important to continue the multilateral international co-operation, like the Maros/Mure§, Szamos/Some§, Körös/Cri§ and Felső-Tisza/Upper Tisa expeditions in the 90s