Panisse Guillermo, Digiani María Celina
Centro de Estudios Parasitológicos y de Vectores UNLP-CONICET, Boulevard 120 Nro 1460 e/61 y 62 (B1902CHX) La Plata, Buenos Aires, Argentina.
CONICET. División Zoología Invertebrados, Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata, Paseo del Bosque s/n B1900FWA, La Plata, Buenos Aires, Argentina.
Parasitol Res. 2018 Apr;117(4):1205-1210. doi: 10.1007/s00436-018-5801-2. Epub 2018 Feb 14.
A new species of Heligmonellidae (Trichostrongylina, Heligmosomoidea), Stilestrongylus kaaguyporai n. sp. is described from the small intestine of Euryoryzomys russatus (Rodentia, Cricetidae, Sigmodontinae) from the Argentine Atlantic Forest, in the Misiones province. The new species was found at Campo Anexo Manuel Belgrano, Reserva de Vida Silvestre Urugua-í and Parque Provincial Urugua-í, with a prevalence of 73% in 15 hosts examined. Stilestrongylus includes 24 Neotropical species, all parasitic in rodents, mostly Sigmodontinae. Stilestrongylus kaaguyporai n. sp. can be differentiated from its congeners by the following characters: caudal bursa dissymmetrical with right lobe larger and pattern of type1-4 in both lobes, rays 6 not forming a lateral trident with rays 4 and 5, rays 8 with dissymmetrical pathway, genital cone hypertrophied with a conspicuous hood-like projection and females with a marked dorso-ventral torsion of the posterior end. This report is the second record of a Stilestrongylus species in E. russatus, increasing to nine the number of parasitic species known from this host.
在阿根廷米西奥内斯省的大西洋森林中，从褐稻鼠（啮齿目、仓鼠科、稻鼠亚科）的小肠内发现了一种新的细颈线虫科（毛圆亚目、细颈线虫总科）线虫——卡古伊波拉细颈线虫（Stilestrongylus kaaguyporai）。在曼努埃尔·贝尔格拉诺附属营地、乌拉圭伊野生动物保护区和乌拉圭伊省立公园发现了该新物种，在所检查的15只宿主中，其感染率为73%。细颈线虫属包括24个新热带物种，均寄生于啮齿动物，主要是稻鼠亚科。卡古伊波拉细颈线虫可通过以下特征与其同属物种区分开来：尾伞不对称，右叶较大，两叶均为1-4型模式；射线6不与射线4和5形成外侧三叉；射线8路径不对称；生殖锥肥大，有明显的帽状突起；雌虫后端有明显的背腹扭转。本报告是褐稻鼠体内细颈线虫属物种的第二次记录，使已知寄生于该宿主的物种数量增加到9种。
