Robles Maria del Rosario, Navone Graciela T, Notarnicola Juliana
Centro de Estudios Parasitológicos y de Vectores, CONICET-UNLP, Calle 2 # 584 (1900) La Plata, Argentina.
J Parasitol. 2006 Feb;92(1):100-4. doi: 10.1645/GE-GE-552R.1.
A new species of Trichuris is described. Trichuris pardinasi n. sp. was recovered from Phyllotis xanthopygus Waterhouse (Rodentia: Muridae: Phyllotini) in Sierra de la Ventana, Buenos Aires Province, and Pampa de Achala, Córdoba Province (Argentina). This is the first record of Trichuris parasitizing Phyllotini rodents. The new species can be differentiated from the other 10 species parasitizing rodents from South America by the absence of the spicular tube, spicular sheath with spines uniformly distributed, the length of spicule, the J-shaped proximal cloacal tube, and the nonprotrusive vulva. Also, a description of the bacillary band is provided. The present and the future findings of shared parasite fauna from both populations of P. xanthopygus in these disjunct areas will support the hypothesis of a continuous distribution of this host species at a past time.
描述了一种新的鞭虫物种。帕氏鞭虫（Trichuris pardinasi）新种是从布宜诺斯艾利斯省塞拉德拉文塔纳和科尔多瓦省阿查拉潘帕（阿根廷）的黄臀叶耳鼠（Phyllotis xanthopygus Waterhouse，啮齿目：鼠科：叶耳鼠属）体内发现的。这是鞭虫寄生于叶耳鼠属啮齿动物的首次记录。该新种可通过无交合刺管、交合刺鞘具均匀分布的刺、交合刺长度、J形近端泄殖腔管以及不突出的阴门与寄生于南美洲啮齿动物的其他10个物种相区分。此外，还提供了关于杆菌带的描述。在这些不连续区域的两个黄臀叶耳鼠种群中共享寄生虫区系的当前和未来发现将支持该宿主物种在过去曾连续分布的假说。
