中文摘要：

记述了采自额尔齐斯河高体雅罗鱼（Leuciscus idus Linnaeus）和尖鳍绚（Gobio gobio acuti pinnatus Men＇schikov）消化道内的斜睾目（Plagiorchiida）、异肉科（Allocreadiidae）、异肉属（Allocreadium）的山地异肉吸虫（Allocreadium montanum Sidorov et Butenko）和伸长异肉吸虫（Allocreadium elongatum Achmerov）.其主要形态特征与原始描述一致,仅部分量度方面略有差异,经检索在我国尚未报道,为我国异肉属二新纪录种.

英文摘要：

The two new records of Allocreadiurn montanum Sidorov et Butenko and Allocreadium elongatum Achmerov were reported from Leuciscus idus Linnaeus and Gobio gobio acutipinnatus Men＇schikov in IrtySh River,China.which belong to the Allocreadium, Allocreadiidae.The main morphological characteristics and original informations were basically consistent with each other.There were a little difference between them.Compared with the original insects,they showed slight differences in some structural sizes, while the main morphological features were basically similar to each other.After relevant document was retrieved,it was found they have never been reported, which were the two new records of Allocreadiurn in China.