title: [Mathevolepis junlanae sp. n. (Cyclophyllidea: Hymenolepididae: Ditestolepidini), a new cestode species from shrews of Far East].
abstract: Mathevolepis junlanae sp. n. from shrews (Sorex spp.) of Far East is described given. The new species occupies an intermediate position between the Palaearctic species M. petrotschenkoi Spassky, 1948 (total number of proglottids--4) and M. skrjabini (Sadovskaya, 1965) (10-12 segments in a series) by the number of synchronously developing proglottids (2-4). The new species differs from M. larbi Karpenko, 1982 by the structure and measurements of copulative apparatus in proglottids. In M. larbi, vagina S-shaped, vagina length 0.147-0.154 mm, cirrus length 0.146-0.149 mm, and cirrus bursa reaching aporal excretory vessels. M. junlanae sp. n. has cirrus bursa slightly crossing center line of sexually mature proglottids, cirrus about half as long (0.084-0.092 mm), and smaller sac-shaped vagina (0.075-0.10 mm). The new species differs from the Nearctic representative M. macyi (Locker and Rausch, 1952) by lesser measurements of cirrus bursa (0.12-0.14 mm versus 0.4 mm) and a fewer number of proglottids in series (2-4 versus 5-7).
authors.forename: Iu A
authors.initials: IuA
authors.lastname: Mel'nikova
authors.forename: K A
authors.initials: KA
authors.lastname: Lykova
authors.forename: V D
authors.initials: VD
authors.lastname: Guliaev
mesh_terms: D000818:Animals; D002589:Cestoda / Q000033:anatomy & histology* / Q000145:classification; D005260:Female; D007422:Intestines / Q000469:parasitology; D008297:Male; D012426:Russia; D012788:Shrews / Q000469:parasitology*; D013045:Species Specificity