四川鱼类寄生吸虫一新种(复殖目:尾孔科)  

A NEW SPECIES OF TREMATODES FROM FISHES OF SICHUAN PROVINCE IN CHINA (DIGENEA:UROTREMATIDAE)

作　　者：张同富[1] 杨明琅[1] 

机构地区：[1]四川农业大学兽医学系,雅安625014

出　　处：《动物分类学报》1992年第4期397-400,共4页Acta Zootaxonomica Sinica

摘　　要：本文记述了尾孔科吸虫一新种——平睾尾孔吸虫,新种Urotrema parallelorchis sp.nov.。新种采自短身间吸鳅和犁头鳅的肠道。新种的睾丸左右排列而不同于该属的所有已知种。In the present paper a new species of digenetic trematodes is described. All measurements are in mm. All type speciments are deposited in the Department of Veterinary Science, Sichuan Agricultural University.Urotrema par allel orchis sp. nov. (figs. 1-3)Body elongated elliptical, spined, 4.825-7.425 × 1.875-2.80. Oral sucker iubterminal, 0.313-0.374 × 0.303-0.404. Prepharynx 0.020-0.070 in length, pharynx 0.101-0.152 × 0.141-0.212, esophagus 0.626-1.162 long, ceca reached to the field between posterior 2/5 and posterior 1/4 of body length. Acetabulum at the junction of anterior with middle third of body, 0.263-0.303 × 0.232-0.293. Testes symmetrical, intercecal, equatorial or preequatorial; left one 0.444- 0.657 × 0.313-0.567, right one 0.424-0.607 × 0.384-0.636. Cirrus pouch placed invertedly at posterior extremity, 0.525-0.929 × 0.152-0.222. Genital pore ventroterminal, on left side of body. Ovary between acetabulum and right testis, on right side of body, 0.323-0.444 × 0.283-0.414. Seminal receptacle 0.162-0.374 × 0.131-0.293. Laurer’s canal present. Uterus winding between testes and posterior extremity of body. Vitelline follicles extending in lateral fields from the level of anterior margin of acetabulum to testicle fields. Eggs 0.025-0.028 × 0.015-0.018. Excretory vesicle Y-shaped.Host Hemimyzon abbreviate, Lepturichthys fimibriata.Location Intestine.Locality Hongya County (29°57’N, 103°24’E), Sichuan Province.Types Holotype 1, paratypes 9.The new species differs from all the known species of the genus Urotrema in testes symmetrical.

关 键 词：吸虫纲 尾孔科 尾孔属 新种 

分 类 号：Q959.155[生物学—动物学]