Moravec Frantisek, Saraiva Aurélia, Abdullah Shamall M A, Bilal Samir J, Rahemo Zohair I F
Institute of Parasitology, Biology Centre of the Academy of Sciences of the Czech Republic, Ceské Budejovice, Czech Republic.
Syst Parasitol. 2009 Oct;74(2):125-35. doi: 10.1007/s11230-009-9196-4. Epub 2009 Sep 4.
Two species of Rhabdochona Railliet, 1916 (Nematoda: Rhabdochonidae) were recorded from cyprinid fishes in the basin of the River Tigris, northern Iraq: adults of R. (R.) tigridis Rahemo, 1978 (emend.) from Capoeta trutta (Heckel) and Cyprinion macrostomum Heckel and fourth-stage larvae of R. (Globochona) sp. from C. macrostomum, Barbus barbulus Heckel and Barbus kersin Heckel. Light and scanning electron microscopical studies of this material made possible a detailed redescription of R. tigridis, which is characterised by 14 anterior prostomal teeth and filamented eggs. It differs from the most similar species, R. fortunatowi Dinnik, 1933, mainly in the presence of large deirids close to the prostom. R. grandipapillata Rahemo & Kasim, 1979 is considered a junior synonym of R. tigridis. Fourth-stage larvae of Rhabdochona (G.) sp., characterised by eight anterior prostomal teeth and the presence of caudal processes on the tail tip, represent the first record of a Rhabdochona species of the subgenus Globochona Moravec, 1972 in Iraq.
1916年的雷氏线虫属（Rhabdochona Railliet）的两个物种（线虫纲：雷氏线虫科）在伊拉克北部底格里斯河流域的鲤科鱼类中被记录到：1978年（修订）的虎纹雷氏线虫（R. (R.) tigridis Rahemo）的成虫来自突吻野鲮（Capoeta trutta (Heckel)）和大口鲤（Cyprinion macrostomum Heckel），以及来自大口鲤、巴氏野鲮（Barbus barbulus Heckel）和克氏野鲮（Barbus kersin Heckel）的球状雷氏线虫（R. (Globochona) sp.）的第四期幼虫。对这些材料进行的光学显微镜和扫描电子显微镜研究使得对虎纹雷氏线虫进行详细的重新描述成为可能，其特征是有14颗前部口前齿和丝状卵。它与最相似的物种，1933年的福氏雷氏线虫（R. fortunatowi Dinnik）的主要区别在于靠近口前叶处有大型排泄孔。1979年的大乳头雷氏线虫（R. grandipapillata Rahemo & Kasim）被认为是虎纹雷氏线虫的次异名。球状雷氏线虫（Rhabdochona (G.) sp.）第四期幼虫的特征是有8颗前部口前齿且尾尖有尾突，这代表了1972年莫拉维茨（Moravec）的球状雷氏线虫亚属的雷氏线虫物种在伊拉克的首次记录。
