四川大鲵寄生吸虫一新属新种(吸虫纲:复殖目)  

A NEW GENUS AND SPECIES OF TREMATODES FROM ANDRIAS DAVIDIANUS IN SICHUAN PROVINCE (TREMATODA: DIGENEA)

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》1997年第2期125-129,共5页Acta Zootaxonomica Sinica

摘　　要：本文描述寄生在大鲵肠道内隐殖科、隐殖亚科吸虫一新种，沐川新鲵居吸虫Ｎｅｏａｎｄｒｉｎｃｏｌａ　ｍｕｃｈｕａｎｅｎｓｉｓ　ｓｐ．ｎｏｖ．，并建立了新属，即新鲵居吸虫属 Ｎｅｏａｎｄｒｉｎｃｏｌａ　ｇｅｎ．ｎｏｖ．。标本采自四川省沐川县。模式标本保存在四川农业大学兽医学系。In this paper a new genus and species of the family Cryptogonimidae are described. All measurements are in mm. All type specimens are deposited in the Department of Veterinary Science, Sichuan Agricultural University. Neoandrincola gen. nov. Generic diagnosis. Cryptogonimidae, Cryptogonlminae. Body small, fusiform, spined. Oral sucker terminal, prepharynx present, pharynx moderately developed, esophagus mod- erately long, caeca not reaching to posterior extremity. Acetabulum smaller than oral suck- er, about one third of body length from anterior extremity. Two gonotyls in immediately anterior and posterior to the acetabulum respectively, anterior gonotyl sucker-like. Gonotyls enclosed together with acetabulum in an acetabulogenital sac. Testes symmetrical, immedi- ately postequatorial, intercaecal. Cirrus and cirrus pouch absent. Seminal vesicle well devel- oped, bipartite, postacetabulum. Hermaphroditic duct short. Genital pore median, between acetabulum and anterior gonotyl. Ovary lobed, equatorial. its posterior part overlapping tes- ticular zone. Seminal receptacle large. Laurer’s canal present. Vitellaria dendritic, in lateral fields between oral sucker and intestinal bifurcation. Uterus winding in region behind go- nads and extending forward along lateral fields of body to esophageal field. Eggs small, numerous. Parasitic in intestine of amphibians. Type species: Neoandrincola muchuanensis sp. nov. In all known genera of Cryptogonimidae, genus Bolbogonotylus alone has two gonotyls, but it differs from new genus in anterior gonotyl not sucker-like; testes tandem; ovary pretesticular; vitellaria follicular, in lateral fields between acetabular and ovarian levels; par- asitic in fishes. New genus most similar to genus Andrincola, but the latter differs from new genus in only having one gonotyl, vitellaria extending backward to gonads, uterus only winding field posterior to ovary and testes. New genus differs from other twelve known genera of Cryptogoniminae in having two gonotyls. Neoandrincola muchuanens

关 键 词：吸虫纲 复殖目 隐殖科 新属 新种 寄生虫 大鲵 

分 类 号：Q959.155[生物学—动物学] Q959.52