四川农业大学学报 ›› 1983, Vol. 1 ›› Issue (01): 79-84.doi: 10.16036/j.issn.1000-2650.1983.01.012

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肺线虫的一新亚科、新属和新种

赖从龙, 沙国润, 张同富, 杨明琅   

  1. 四川农学院牧医系
  • 出版日期:1983-03-31 发布日期:2017-03-11

A NEW SUBFAMILY, GENUS AND SPECIES OF LUNGWORM

Lai Conglong, Sha Guorun, Zhang Tongfu, Yang Minglang   

  1. Department of Animal Husbandry and Veterinary science, Sichuan Agricultural College
  • Online:1983-03-31 Published:2017-03-11

摘要: 1979年10月,重庆动物园在天全县捕获一头羚牛(Budorcas taxicolor Hodgson,1950.)因角斗腹腔被穿孔致死,我们从其气管和支气管内获得三种肺线虫共计一百余条,经鉴定其中一种与已报导的原圆科(Protostrongylidae)中各属的虫种的形态特征都不相同,我们认为是新亚科、新属和新种,拟命名为三叉圆虫亚科(Trifurcastrongylus subfu.n.)三叉圆虫属(Trifurcastrongylus,gen.n.)和天全三叉圆虫(Trifurcctstrongylus tianquanus sp.n.)现将新亚科、科属及新种记述如下:
三叉圆虫亚科(Trifurcastrongylinae)新亚科
口囊缺乏,有头乳突6个(两侧、亚背和亚腹各2个),食道后部略膨大。雄虫:交合伞发达,背肋粗短并从基部分为三支,似倒"山"字形,后侧肋很小,像中侧肋上长出的芽肢。交合刺一对,不相等、纤细、无翼。导刺带存在。支持器缺乏。雌虫:阴门开口于虫体尾端肛门附近。前阴道缺乏。
模式属:Trifurcastrongylus新属
三叉圆虫亚科(Trifurcastrongylinae)隶属于原圆科(Protostrongylidae)根据C.H.波耶夫(1975)《线虫学基础))25卷(原圆肺线虫)一书中记载有6个亚科,即:Protostrongylinae,Muelleriinae,Varestrongylinae,Neostrongylinae,Elaphostrongylinae和Skrjabinocaulinaeo新亚科背肋粗而短,从基部就分为三支,似倒"山"字形的背肋与其他亚科的背肋样式均不相同。如Muelleriinae亚科的背肋虽然也分为三支,但它是在背肋远端才分支的,而新亚科的背肋是从基部就平行分出的,并呈特殊的倒"山"字形。此外它们的交合刺的形态也完全不同,前者的交合刺相等且相似,而后者的交合刺两根不相等。又如Neostongylinae亚科中的Neostrongylus属的交合刺虽与新亚科的相似,两根不等长。但其背肋形态则明显不相同,前者的背肋为球形,其上具有四个乳突,而后者的背肋从基部分为三支,呈倒"山"字形。此外前者有支持器,而后者则缺乏。新亚科与其他亚科的区别见附表。

Abstract: A lungworm Trifurcastrongylus tianquanus sp.n. was found in the bronchi of takin (Budorcas taxicolor). It belongs to a new subfamily Trifurcastrongylinae and new genus Trifurcastrongylus of family Protostrongylidae
Diagnosis of the new subfamily and genus, Mouth simple. Buecal capsule absent. Head papilla present.Esophagus enlarged posteriorly. Male. Bursa developed. Dorsal ray stout, short and divided into three branches from its base, as a turned Chinese word "Shan". Posterolateral rays very small, as a papilla of mediolateral rays. Spicules unequal, slender, without alae.Gubernaculum present. Telamon absent. Female: Tail short, conical.Vulva opens near the anus of the end of body.
Diagnosis of the new species. Body filiform.The male is 25.9 mm.long by 0.19 mm.wide.Bursa divided into a pair of lateral lobes and a dorsal lobe. Spicules similar but unequal in length, the left 0.66mm.and the right 0.58mm. long. Gubernaculure is dividec into two parts, a rodlike eorpus, and a membraneous crus with a rosette-shaped frame at its distal end.Capitulum absent. The female is 35.90 mm. long by 0.185mm.wide.Provagina absent.Vulva near posterior extremity.
Host: Takin (Budorcas taxicolor)
Habitat: Bronchi
Locality: Tianquan, Sichuan, China.
Type and Paratype specimens are deposited iu Department of Animal Husbandry and Veterinary science of Sichuan Agricultural College.