Taxonomic name: Hymenolepis abortiva (Cestodes)Life Cycle Stage: ?Interaction Type: is parasite ofInteraction Record Type: experimental Jarecka L., 1960. Life cycles of tapeworms from lakes Goldapiwo and Mamry Polnocne. Acta Parasitologica Polonica, 8: 47-66 Taxonomic name: Gammarus sp.