摘要
在进行全省畜禽寄生蠕虫区系调查过程中,我们在云南省德宏傣族景颇族自治州陇川县一水牛瘤胃内所寄生的同盘类吸虫,经制片鉴定后发现其中有一种系新属新种,定名为长咽属Longipharynx陇川长咽吸虫Longipharynx longchuansis,通过对15个虫体标本的量度和观察,现记述如下。
In this paper one new genus and species(Trematoda:Paramphistomatidae)for water buffalo from Yunnan are described.Longipharynx gen.nov.Body conical-shaped,Oral sucker very long cylindrical-shaped.The ratio of oral sucker to the length of body is 1:3.4(2.8-3.9).The ventral sucker is located at the end of body,and is bigger than oral sucker.Caeca long and thin,having several convoutions.Testes spherical or squarish-shaped,arranged in tandem,situated posterior to the mid-line of the body.Testes divided into shallow and irregular several lobes.Genital pore is situated centrally,a little anterior to the bifurcation of intestinal caeca.Uterus,slightly winding,bears very few eggs,vitellaria on two sides of the mid-line of the body.Laurer’s canal runs dorsally and opens anteriorly to the pore of the excretory bladder,with which the canal lies in a paralled position.Longipharynx longchuansis sp.nov.Body conical-shaped.The rear part is the widest part of the body.Body measures 5.5-8.0mm long and 2.5-3.0mm broad.The ratio of the broad to the length of body is 1:2.4.Oral sucker is long cylindrical,measuring 1.94-2.40×0.28-0.38mm.The ratio of the diameter of the oral sucker to the length of the body is 1:3.4.Acetabulum is half spherical,measuring 0.63-0.98×1.00-1.23mm.The ratio of the diameter of acetabulum to the length of the body is 1:8.4.The ratio of the oral sucker to the acetabulum is 1:2.0.Oesophagus is 0.56-0.81mm in length,Testes are spherical or squarish.The anterior and posterior testes arranged in tandem,situated posterior to the mid-line of the body.The anterior testis measures 0.31-0.60×0.33-0.55mm and the posterior testis measure 0.23-0.61×0.29-0.60mm.Genital pore is situated at one side anterior to the bifurcation of intestinal caeca.Ovary is subspherical at the posterior of the testes,measuring 0.14-0.39×0.18-0.33mm.Vitellaria are finely granular on both of mid-line of the body.Uterus slightly winding,bears very few eggs.Laurer’s canal runs dorsally and opens anterior to the excretory pore.Eggs larger
作者
黄德生
解天珍
李松柏
宋学林
朱加兴
Huang Desheng;Xie Tianzhen;Li Songbai;Song Xuelin;Zhu Jiaxing(Institute of Animal Husbendry and Veterinary Medicine of Yunnan;Yunnan Provincial General Veterinary Station)
关键词
同盘科
锡叶族
长咽属
新属
新种
陇川
Paramphistomatidae
Ceylonocotylini
Longipliarynx
New genus
New species
Longcbuan
