Lizama Maria de los Angeles P, Takemoto Ricardo M, Pavanelli Gilberto C
State University of Maringá - Postgraduate Course in Ecology of Continental Aquatic Environments (PEA), Bloco G-90, Av. Colombo, 5790, 87020-900, Maringá, PR, Brazil.
Syst Parasitol. 2004 Jan;57(1):45-9. doi: 10.1023/B:SYPA.0000010684.67784.6e.
Two new species of Tereancistrum Kritsky, Thatcher & Kayton, 1980 are described from the gills of Prochilodus lineatus (Prochilodontidae) collected from the upper Paraná River floodplain, Brazil. T. toksonum n. sp. is characterised by a slim ventral bar with a sclerotised membrane along the anterior margin. Another characteristic is the dorsal anchor with an elongated deep root. T. curimba n. sp. is similar to T. ornatus Kritsky, Thatcher & Kayton, 1980 but possesses a sclerotised structure between the accessory sclerites of the ventral anchors. Moreover, the accessory anchor sclerites of this new species are longer than those described for T. ornatus.
本文描述了采自巴西巴拉那河上游泛滥平原的细纹锯脂鲤（Prochilodontidae）鳃部的两种新的特氏锚首吸虫（Tereancistrum Kritsky, Thatcher & Kayton, 1980）。托克索姆特氏锚首吸虫（T. toksonum n. sp.）的特征是腹杆细长，前缘有硬化膜。另一个特征是背锚具细长的深根。库里姆巴特氏锚首吸虫（T. curimba n. sp.）与1980年描述的饰纹特氏锚首吸虫（T. ornatus Kritsky, Thatcher & Kayton）相似，但在腹锚的副小骨之间有一个硬化结构。此外，该新物种的副锚小骨比饰纹特氏锚首吸虫描述的更长。
