Pereira Felipe B, Sousa Bernadete M, Lima Sueli de Souza
Programa de Pós-Graduação em Comportamento e Biologia Animal, Instituto de Ciências Biológicas, Universidade Federal de Juiz de Fora-UFJF, CEP 36036-900, Juiz de Fora, MG, Brazil.
J Parasitol. 2011 Apr;97(2):311-7. doi: 10.1645/GE-2579.1. Epub 2010 Sep 29.
Parapharyngodon bainae n. sp. (Nematoda:Pharyngodonidae) collected from the small intestine of Tropidurus torquatus (Squamata:Tropiduridae) is described. The new species is the 47 th species in the genus and the 14 th in the Neotropical region. The morphology of male posterior end, ovary position in females, and egg size can be used to differentiate P. bainae from the other congeneric species. Parapharyngodon rotundatus , Parapharyngodon sanisfaciecaudus , and Parapharyngodon riojensis are most closely related to P. bainae. In males of P. sanisfaciecaudus and P. rotundatus , the cloacal lip has a smooth appearance, whereas in P. bainae , males have an echinate cloacal lip. Parapharyngodon riojensis differs from P. bainae because its females have postbulbar ovaries, the eggs are larger, and the esophagi are larger in both sexes. Parapharyngodon spp. nematodes occupy an intermediate phylogenetic position among pharyngodonid parasite lineages in carnivorous and herbivorous reptiles. The average low intensity of infection for P. bainae (4.8 ± 4.6) is typically found in carnivorous reptiles. This fact and the high prevalence value (60%) can be explained by the ingestion of environmental substrata material containing parasite eggs while foraging.
描述了从饰纹角蜥（有鳞目：角蜥科）小肠中采集到的巴氏副咽齿线虫新种（线虫纲：副咽齿科）。该新物种是该属的第47个物种，也是新热带地区的第14个物种。雄性后端形态、雌性卵巢位置和卵大小可用于将巴氏副咽齿线虫与其他同属物种区分开来。圆副咽齿线虫、圣面尾副咽齿线虫和里奥哈副咽齿线虫与巴氏副咽齿线虫关系最为密切。在圣面尾副咽齿线虫和圆副咽齿线虫的雄性中，泄殖腔唇外观光滑，而在巴氏副咽齿线虫中，雄性泄殖腔唇有棘。里奥哈副咽齿线虫与巴氏副咽齿线虫不同，因为其雌性有球后卵巢，卵更大，且两性的食管都更大。副咽齿属线虫在肉食性和草食性爬行动物的副咽齿科寄生虫谱系中占据中间系统发育位置。巴氏副咽齿线虫的平均低感染强度（4.8±4.6）通常见于肉食性爬行动物。这一事实和高流行率值（60%）可以通过在觅食时摄入含有寄生虫卵的环境基质材料来解释。
