RT Journal Article SR Electronic A1 Tenora, František A1 Baruš, Vlastimil A1 Prokeš, Miroslav T1 Discussion to several tapeworm species from the families Hymenolepididae, Anoplocephalidae and Davaineidae parasitizing rodents and man JF Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis YR 2015 VO 52 IS 1 SP 23 OP 28 DO 10.11118/actaun200452010023 UL https://acta.mendelu.cz/artkey/acu-200401-0003.php AB With the more recent knowledge, the hypothesis by Joyeux and Baer (1929) is consulted: "... most of rarer species of tapeworms occurring in man are probably parasites of other mammals, specially of Rodentia .....". In connection with that, the host specificity in several species from the families Hymenolepididae, Anoplocephalidae and Davaineidae is discussed. So far parasites of rodents are concerned, they are the species Rodentolepis straminea, R. fraterna, Hymenolepis diminuta, H. pseudodiminuta, H. hibernia and Inermicapsifer arvicanthidis. So far parasites of man are concerned, they are the species Rodentolepis nana, Hymenolepis flavopunctata and Inermicapsifer madagascariensis. Attention is drawn also to discrepancies in the opinions published on the views of hosts' specificity or of zoogeographical distribution of several species from the family Davaineidae.