title: [Spasskylepis tiunovi sp. n. (Cyclophyllidea, Hymenolepididae)--a new cestode species from shrews of the Far East].
abstract: The description of a new cestode species with a serial homonomous strobila, Spasskylepis tiunovisp. n. (Cyclophyllidea, Hymenolepididae, Ditestolepidini) from shrews (Sorex spp.) of the Far East is given. The new spesies differs from the type species of the genus, Spasskylepis ovaluteri (Schaldybin, 1964) in having oligomerous strobila and different size and structure of copulative organs. In contrast to S. ovaluteri, S. tiunovi has less than a half the number of proglottids in its strobila (48-64 versus 118-150). The cirrus of S. tiunovi (0.175-0.195 mm long) is twice as large as that of S. ovaluteri (0.080-0.100 mm long), pleated when invaginated, and armed with spines only in its first third. The copulative section of the vagina in S. tiunovi (as compared with S. ovaluteri) is very long, having loops in the median or aporal part of proglottids, and without a sphincter.
authors.forename: K A
authors.initials: KA
authors.lastname: Lykova
authors.forename: Iu A
authors.initials: IuA
authors.lastname: Mel'nikova
authors.forename: C V
authors.initials: CV
authors.lastname: Karpenko
mesh_terms: D000818:Animals; D002589:Cestoda / Q000033:anatomy & histology* / Q000145:classification; D012788:Shrews / Q000469:parasitology*; D012800:Siberia; D013045:Species Specificity