摘要
对鹅裂口线虫进行了首次扫描电镜观察,可见成虫体表密布横纹,虫体中部横纹宽2.4～2.8μm。呈不规则六边形的口孔内有一圆锥状的背齿,背齿端部腹面有一长形开口,长0.91μm,宽0.29μm,可能是食道腺开口。两圈头乳突形态不一,外圈头乳突呈圆形丘状隆起,内圈头乳突则为圆盘状隆起。排泄孔呈椭圆形横裂开口,大小为2.7μm×1.9μm。交合伞腹面中央纵嵴末端有一孔洞样构造,直径约7～8μm。此外,还对颈乳突、阴门盖、肛门、尾、尾乳突等形态进行了详细观察。
Through a scanning electron microscopy,the adult of Amidestomum anseris (Zeder,1800)was observed firstly.The body surface was covered with transverse cuticu- lar strae.In the irregular hexagonal oral pore bearing a conical dorsal tooth,at the termi- nal end of taper dorsal tooth,there was an oblong hole,which might be the pore of esophageal gland.Different shaped head papillae circled the buceal capsule.There was a hole at the end of central longitudinal ridge on the ventral-surface of copulatrix.The adult had an elliptical excretory pore,taper cervical papillae,atongue-like cover of vulva,a backward elliptical anus and a finger-like tail.
