Junker K, Bain O, Boomker J
Department of Veterinary Tropical Diseases, University of Pretoria, Private Bag X04, Onderstepoort 0110, South Africa.
Onderstepoort J Vet Res. 2006 Dec;73(4):315-7.
During a study conducted between 2003 and 2005 on the diet of Nile crocodiles in Botswana, two young adult nematodes, one male and one female, belonging to the genus Eustrongylides Jägerskiöld, 1909 were recovered from the stomach contents of one of these animals. The caudal bursa of the male is present and the ejaculatory duct could be identified, but the spicule could not be seen. The vulva of the female has opened and the anus is situated on a terminal protruberance. Measurements and drawings of these specimens are provided, together with some data on the occurrence and life-cycles of members of the genus Eustrongylides in crocodilians world-wide and in African hosts in particular. Piscivorous birds are the usual final hosts of these nematodes. It is probable that the specimens described herein had developed in a paratenic fish host, and that the latter had been eaten by the crocodile.
在2003年至2005年对博茨瓦纳尼罗鳄饮食进行的一项研究中，从其中一只尼罗鳄的胃内容物中发现了两条成年线虫，一雄一雌，属于1909年命名的真圆线虫属（Eustrongylides Jägerskiöld）。雄性线虫的尾翼存在且射精管可识别，但未见交合刺。雌性线虫的阴门已开放，肛门位于末端突起上。文中提供了这些标本的测量数据和绘图，并给出了真圆线虫属成员在全球鳄鱼尤其是非洲宿主中的出现情况和生命周期的一些数据。食鱼鸟类是这些线虫通常的终末宿主。本文描述的标本很可能是在中间性鱼类宿主中发育的，而后者被鳄鱼吃掉了。
