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首页> 外文期刊>Parasite >Description of a new species of Heugmosomoides (Nematoda: Heugmosomidae) parasitic in mlcrotus limnophilus (rodentia: cricetidae) from Rangtang, Sichuan, China
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Description of a new species of Heugmosomoides (Nematoda: Heugmosomidae) parasitic in mlcrotus limnophilus (rodentia: cricetidae) from Rangtang, Sichuan, China

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摘要

Heligmosomoides croigi n. sp. (Nematoda: Heligmosomoidea) is described from Microtus limnophilus Büchner, 1889 (Rodentia: Cricetidae) from Rangtang, Sichuan, China. It is related to H. protobullosus Asakawa, 1987 and H. longispiculum Tokobaev Erkulov, 1966 both parasites of Microtus spp. from Japan and USSR, respectively by the following features: a ratio of spicule length/body length of more than 45 and rays 9 shorter than rays 10. The new species is differentiated by rays 8 being closed to rays 6 and 19-22 cuticular ridges versus 14 in H. protobullosus (synlophe not described in H. longispiculum). H. longicirratus (Schulz, 1954) also a parasite of Microtus sp. from the USSR is the most closely related species based on the number of cuticularridges (20) and the ratio of spicule length/body length (48 versus 50 ). There are no illustrations of this species and the female has not been described; for that reason, it is not possible to compare it accurately with our specimens.

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