【摘要】 报道寄生于北京猛禽的2种旋尾类线虫,其中一种为新种,另一种为中国新纪录种。作者分别对其做了光镜和电镜观察。北京副旋翼线虫,新种Paraspiralatus beijingensis sp.nov.采自于雕鸮的口腔和胃内,它与P. sakeri Gibbons,Nicholls &Bailey,2004的不同之处在于具有单个的肛前乳突,右交合刺远末端弯向背侧并稍微膨大而P. sakeri的交合刺远末端是直的,不膨大,呈钝尖形。纵纹腹小鸮无肛线虫Aprocta noctuae Spaul,1928采自红角鸮的体腔。本次所观察标本在形态上,如交合刺的长短和形状,尾乳突的数目和排列,阴门的位置,卵的大小等,都与前人对A. noctuae的描述一致。但是电子扫描电镜结果显示,A. noctuae的头端具有8个头乳突而不是4个,线虫角质层具有精细的横纹。A. noctuae为我国新纪录种。标本保存于河北师范大学生命科学学院。更多还原

【Abstract】 Two species of spirurid nematodes were collected from raptor in Beijing,China.They were examined by light microscopy and scanning electron microscopy(SEM).Paraspiralatus beijingensis sp.nov.(Spirurida,Spirocercidae) was recovered from the buccal cavity and stomach of northern eagle owl,Bubo bubo(Linnaeus).It differs from P.sakeri Gibbons,Nicholls,Bailey and Samour,2004 in having single median papilla anterior to the cloaca,and in the shape of the right spicule(right spicule with bent and expanded distal end in the new species instead of right spicule with straight and bluntly pointed distal end in P.sakeri).Aprocta noctuae Spaul,1927(Spirurida,Aproctidae) was collected from the body cavity of common scops owl,Otus scops(Linnaeus).T he morphology of present specimens,including the length and shape of spicules,the number and pattern of caudal papillae in male and the position of vulva opening,the morphology of eggs in female,agree with the description of previous report,but SEM observation revealed 8 cephalic papillae instead of 4 cephalic papillae,and the cuticle of body with fine transverse striations which was considered as a feature of specific importance in taxonomy of genus Aprocta.A.noctuae is the first record from China.更多还原