中国淡水鱼类寄生单殖吸虫锚首虫四新种(指环虫目:锚首虫科)

FOUR NEW SPECIES OF MONOGENEA FROM FRESHWATER FISHES IN CHINA (DACTYROGYRIDEA: ANCYROCEPHALIDAE)

本文报道并叙述我国四种寄生于淡水鱼上的锚首虫,它们是:福建锚首虫、江西锚首虫、鄱阳锚首虫和钱塘锚首虫,分别寄生于鳅、(鱼勾)和(鱼骨)属淡水鱼的鳃丝上,分布在我国福建建瓯、江西鄱阳湖、浙江曹娥江、钱塘江等淡水江湖中。文内各新种和相似种列表并描述了在形态特征上的相互差別,以确定该新种的成立。

This paper deals with four new species of parasitic monogenea from freshwater fishes in China. Measurements are in mm. Type speciments arc deposited in the Department of Biology, Hangzhou University.Ancyrocephalidae Bychowsky, 19371. Ancyrocephalus fujianensis sp. nov. (fig. 1)Host and location: Gill filaments of Leptobotia compressicanda (Nichols).Locality: Jiangou (118°20’E., 27°5’N.) of Province Fujian.This species is similar to A. Mac Ma, Li et Wang, 1981, In the shape of archors, but differs from the latter in size and shape of the chitinous apparatus, especially the structure and size of copulatory organ are quite different between this two species.2. Ancyrocephalus jiangxinensis sp. nov. (fig. 2)Host and location: Gill filaments of Gnathopogon argentatus (San. et Dab.).Locality: Boyang lake (116°21’E., 29°2’N.) of Province Jiangxie; Cao’e river (120°50’E., 29°36’N.) of Province Zhejiang.The anchors of this species are similar to A. kamegaii Gussev, 1985, but differs from the latter in the size of the chitinous elements and also in the size and shape of copulatory complex.3. Ancyrocephalus boyangensis sp. nov. (fig. 3)Host and location: Gill filaments of Gnathopogon argentatus (San. et Dab.).Locality: Boyangensis lake (116°21’E., 29°2’N.) of Province Jiangxi; Cao’e river (120°50’ E., 29°36’N.) of Province Zhejiang.This species resembles A. polymorphus Gussev, 1955 in the shape of haptoral chitinous elements, but differs from the latter in the size of these elements especially in the hooklet and size of copulatory complex.4. Ancyrocephalus qiantangensis sp. nov, (fig. 4)Host and location: Gill filaments of Hemibarbus maculatus Bleeker.Locality: Qiantang river (120°25’E., 30°17’N.) of province Zhejiang.This species is similar to A. pavlovsky Gussev, 1955 in the shape of haptoral chitinous elements, but differs from the latter in the sire of these elements and in the structure and size of the copulatory complex.Key words Monogenea Dactyrogyridea Ancyrocephalidae Ancyrocephalus new species