短咽属吸虫一新种的研究(复殖目:短咽科)  

STUDY ON A NEW SPECIES OF BRACHYLAIMA (DIGENEA:BRACHYLAIMIDAE)

作　　者：杨光友[1] 郑继贵[1] 赖从龙[2] 

机构地区：[1]四川省雅安地区卫生防疫站,雅安625000 [2]四川农业大学

出　　处：《四川动物》1992年第2期1-3,共3页Sichuan Journal of Zoology

摘　　要：本文记述寄生于四川省雅安市四川短尾鼩肠道内的短咽科吸虫一新种——雅安短咽吸虫(Brochylaima yaanensis sp.nov.).模式标本保存于四川省雅安地区卫生防疫站。This paper reports a new species of Brachylaima (Digenea:Brachylaimidae) collected from Anourosorex squamipes Milne-Edwards in Yaan,Sichuan,China. All the measurements are in mm. and average in parenthesis. The type specimens are deposited in Sanitary and Anti-Epidemic Station of Yaan Prefecture, Yaan, Sichuan, China.Brachylaima yaanensis sp.nov. (Fig, 1- 4 )Body elongated elliptical with spines, 4.300—6.650×0.950—1.450 (5.336×1.277). Oral sucker subterminal, round-shaped, 0.400—0.500×0.350—0.430 (0.467×0.393) ; acetabulum round, larger than oral sucker, 0.400—0.630×0.400—0.500(0.516×0.486), in one-fourth to fifth of the body. The ratio of two suckers 1:1.143—1.279 (1:1.237) , acetabular index 1:10.750—12.091 (1:10.979). Prepharynx absent, pharynx 0.180—0.220 × 0.150—0. 200 (0.200×0.176). No trace of esophagus, ceca sinous, reaching to the subterminal of the body.Testes sub-globular, anterior testis 0.340—0.630×0.320—0.500 (0.505×0.470) , posterior testis 0.380—0.500 × 0.330—0.500 (0.438×0.425) . Cirrus pouch well-developed, elongated saccular, 0.530—0.800×0.043—0.075 (0.685×0.056). Pars prostatica outside of the cirrus pouch, inner seminal vesicle 0.120—0.138 × 0.050—0.063 (0.129×0.057) , outer seminal vesicle well-developed, ellipitical, 0. 250—0. 450 × 0. 063—0.125 (0.312×0.084) . Gential pore in the front of anterior testis , or slightly to the left. Ovary ellipitical, 0.295—0.450 × 0.270—0.410 (0.400 × 0.345) , between testes. Vitellaria follicules extending in lateral fields from behind acetabulum to the anterior testis. Uterus coils mainly occupied the intercecal area from cecal arch to the anterior testis. Eggs ellipitical, 0.028—0.030×0.015 (0.029×0.015) . Excretory vesicle Yshaped.Host: Anourosorex squamipes Milne-EdwardsLocations IntestineLocality, Yaan, Sichuan, ChinaType specimens: Holotype 1, paratype 9Diagnosis:The new species is closely related to B.gigas Wang et Jiang, 1986, B. crispocoelium Zhu et Gu, 1982 and B. eophonae Yamagu

关 键 词：吸虫纲 短烟科 短烟属 新种 

分 类 号：Q959.155[生物学—动物学]