New records of helminths from the brown bear, <i>Ursus arctos</i> L., in the Soviet Far East

Abstract

Helminths of six species are reported from the brown bear, Ursus arctos L., from the Taigonos Peninsula, northeastern Siberia. Trematodes of four species represent new host records: Microphallus pirum (Afanas'ev, 1941); Maritrema afanassjewi Belopol'skaia, 1952; Phocitrema fusiforme Goto and Ozaki, 1930; and Cryptocotyle lingua (Creplin, 1825). Nematodes of two species, Molineus patens (Dujardin, 1845) and Uncinaria yukonensis (Wolfgang, 1956), constitute respectively a new host record and a new record for Eurasia. The parasite–host relationships of these helminths are reviewed.