| validity of the bear tapeworm diphyllobothrium ursi (cestoda: diphyllobothriidae) based on morphological and molecular markers. | the bear tapeworm diphyllobothrium ursi is described based upon the morphology of adult tapeworms recovered from the brown bear (ursus arctos middendorffi) and larval plerocercoids found in sockeye salmon (oncorhynchus nerka) from kodiak island in alaska in 1952. however, in 1987 d. ursi was synonymized with diphyllobothrium dendriticum, and the taxonomic relationship between both species has not subsequently been revised. in this study mitochondrial cytochrome c oxidase subunit 1 gene (cox1) se ... | 2012 | 22663179 |