Moravec František, Sheeba Sarasamma, Kumar Appukuttannair Biju
Institute of Parasitology, Biology Centre of the Academy of Sciences of the Czech Republic, České Budějovice, Czech Republic.
Acta Parasitol. 2012 Mar;57(1):74-82. doi: 10.2478/s11686-012-0013-x. Epub 2012 Feb 25.
A new species of parasitic nematode, Rhabdochona (Rhabdochona) keralaensis sp. nov., is described based on specimens recovered from the intestine of Anguilla bengalensis bengalensis (Gray) collected from the freshwater bodies of Kerala State, southern India. It is characterized mainly by the presence of ten anterior prostomal teeth, absence of basal teeth, simple deirids, length of spicules, number and arrangement of preanal papillae and non-filamented eggs. Two species of camallanid nematodes, adults of Camallanus cotti Fujita, 1927 and a single Procamallanus (Spirocamallanus) sp. fourth-stage larva, were also recorded from A. bengalensis. Camallanus cotti, a pathogenic parasite of many species of wild and aquarium-reared fishes in many countries of South and East Asia, Europe, South and North America, West Indies and Australia, is reported for the first time from a representative of the fish family Anguillidae. Descriptions of R. (R.) keralaensis and Indian specimens of C. cotti, based on light and scanning electron microscopical examinations, are provided. Camallanus oxygasterae Gupta et Bakshi, 1983 is considered a junior synonym of C. cotti.
基于从印度南部喀拉拉邦淡水水体中采集的孟加拉鳗鲡（Anguilla bengalensis bengalensis (Gray)）肠道内获取的标本，描述了一种新的寄生线虫——喀拉拉似杆线虫（Rhabdochona (Rhabdochona) keralaensis sp. nov.）。其主要特征为具有10颗前口前齿、无基部齿型、排泄孔简单、交合刺长度、肛前乳突数量及排列方式以及非丝状虫卵。还从孟加拉鳗鲡中记录到两种驼形线虫，即1927年发现的科氏驼形线虫（Camallanus cotti Fujita）的成虫以及一条单一的原驼形线虫（Spirocamallanus）属第四期幼虫。科氏驼形线虫是南亚、东亚、欧洲、南北美洲、西印度群岛及澳大利亚许多国家多种野生和养殖观赏鱼类的致病寄生虫，首次在鳗鲡科鱼类中被报道。基于光学显微镜和扫描电子显微镜检查，提供了喀拉拉似杆线虫以及印度科氏驼形线虫标本的描述，并将1983年发现的奥氏驼形线虫（Camallanus oxygasterae Gupta et Bakshi）视为科氏驼形线虫的次异名。
