Mafra A C, Lanfredi R M
Programa de Biologia Celular e Parasitologia, Instituto de Biofisica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, RJ, Brazil.
J Parasitol. 1998 Jun;84(3):582-8.
This study was undertaken to clarify several aspects of morphological and taxonomic characters of Physaloptera bispiculata Vaz and Pereira, 1935, a parasite of the water rat, Nectomys squamipes. The cephalic structures (including lips, papillae, teeth, amphids, and porous areas) and details of the posterior end of male and female adult worms were examined by scanning electron microscopy, leading to the addition of new taxonomic characters for this species. We consider P. bispiculata a valid species, based on a comparative analysis of the specific characters for P. bispiculata and P. getula Seurat, 1917, including the morphology and morphometry of body structures as well as number and disposition of caudal papillae of the males.
本研究旨在阐明双刺泡翼线虫（Physaloptera bispiculata Vaz and Pereira，1935）的形态学和分类学特征的几个方面，该线虫是水鼠（Nectomys squamipes）的寄生虫。通过扫描电子显微镜检查了雌雄成虫的头部结构（包括唇、乳突、齿、头感器和多孔区域）以及后端细节，从而为该物种增添了新的分类学特征。基于对双刺泡翼线虫和1917年描述的盖氏泡翼线虫（Physaloptera getula Seurat）的特定特征进行比较分析，包括身体结构的形态学和形态测量以及雄性尾乳突的数量和分布，我们认为双刺泡翼线虫是一个有效物种。
