Haseli Mohammad
Department of Biology, Faculty of Sciences, University of Guilan, Rasht, Iran.
Syst Parasitol. 2013 Jul;85(3):271-9. doi: 10.1007/s11230-013-9425-8. Epub 2013 Jun 22.
In a study on the order Trypanorhyncha Diesing, 1863, a total of 35 specimens belonging to nine species of elasmobranch in the Gulf of Oman, was examined. The following trypanorhynch species were identified: Pterobothrium lesteri Campbell & Beveridge, 1996, Otobothrium carcharidis (Shipley & Hornell, 1906), Eutetrarhynchus platycephali Palm, 2004, Parachristianella indonesiensis Palm, 2004, Pa. monomegacantha Kruse, 1959 and Prochristianella mooreae Beveridge, 1990. Prochristianella garshaspi n. sp. is described from Pastinachus sephen (Forsskål) and Rhinoptera sp. The new species is allocated to the genus Prochristianella Dollfus, 1946 on the basis of the presence of two bothria, prebulbar organs, and a heteroacanthous typical tentacular armature with relatively few hooks in each principal row, hollow hooks increasing in size from antibothrial and then decreasing towards the bothrial surface of the tentacle, hooks 1 and 1' being separated, and a basal swelling with characteristic billhooks increasing in size towards the bothrial surface. The lack of microscopically visible microtriches on the scolex distinguishes the new species from P. hispida (Linton, 1890), P. clarkeae Beveridge, 1990, P. thalassia (Kovaks & Schmidt, 1980), P. multidum Friggens & Duszynski, 2005 and P. cairae Schaeffner & Beveridge, 2012. Prochristianella garshaspi n. sp. can be distinguished from the remaining species within the genus by a combination of the following morphological features: the presence of numerous gland-cells within the tentacular bulbs, the number of rows on the basal swelling, the number of hooks per half spiral row, the size of the principal hooks, the number of the testes and the presence of an external seminal vesicle.
在一项关于1863年双吻绦虫目的研究中，共检查了阿曼湾9种板鳃亚纲鱼类的35个样本。鉴定出以下双吻绦虫物种：莱氏翼槽绦虫（Pterobothrium lesteri Campbell & Beveridge，1996）、鲨耳槽绦虫（Otobothrium carcharidis (Shipley & Hornell，1906)）、扁头真四吻绦虫（Eutetrarhynchus platycephali Palm，2004）、印度尼西亚副克里斯蒂绦虫（Parachristianella indonesiensis Palm，2004）、单巨棘副克里斯蒂绦虫（Pa. monomegacantha Kruse，1959）和穆氏原克里斯蒂绦虫（Prochristianella mooreae Beveridge，1990）。加氏原克里斯蒂绦虫新种（Prochristianella garshaspi n. sp.）是从海湾蝠鲼（Pastinachus sephen (Forsskål)）和魟属（Rhinoptera sp.）中描述的。基于以下特征，该新物种被归入1946年的原克里斯蒂绦虫属（Prochristianella Dollfus）：具有两个吸槽、球前器官，以及典型的异棘型触手武装，每个主排上的钩相对较少，空心钩从吸槽对侧开始增大，然后朝着触手的吸槽表面减小，钩1和钩1'分开，并且有一个基部肿胀，其特征性的喙钩朝着吸槽表面增大。头节上缺乏显微镜可见的微毛，这使该新物种与多毛原克里斯蒂绦虫（P. hispida (Linton，1890)）、克拉克原克里斯蒂绦虫（P. clarkeae Beveridge，1990）、海原克里斯蒂绦虫（P. thalassia (Kovaks & Schmidt，1980)）、多钩原克里斯蒂绦虫（P. multidum Friggens & Duszynski，2005）和凯拉原克里斯蒂绦虫（P. cairae Schaeffner & Beveridge，2012）区分开来。加氏原克里斯蒂绦虫新种可通过以下形态特征的组合与该属内的其余物种区分开来：触手球内存在大量腺细胞、基部肿胀上的排数、每半螺旋排的钩数、主钩的大小、睾丸的数量以及外部精囊的存在。
