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Diphyllobothrium Fayi N. Sp. (Cestoda: Diphyllobothriidae) From The Pacific Walrus, Odobenus Rosmarus Divergens, Robert L. Rausch
Diphyllobothrium Fayi N. Sp. (Cestoda: Diphyllobothriidae) From The Pacific Walrus, Odobenus Rosmarus Divergens, Robert L. Rausch
Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications
An independent species of cestode of the genus Diphyllobothrium Cobbold, 1858, known only from the Pacific walrus, Odobenus rosmarus divergens Illiger, has been incorrectly designated Diphyllobothrium cordatum (Leuckart, 1863) in the literature since 1955. That cestode is described in this study as Diphyllobothrium fayi n. sp. on the basis of specimens obtained from walruses from the northern Bering Sea and the Arctic Ocean. It is distinguished readily from D. cordatum by its much larger strobila of different form and by a range of morphological characteristics of taxonomic significance in the reproductive organs. Comparisons were made with specimens of D. cordatum …