Abstract: Objective To investigate the prevalence of trematode Aspidogastrea in freshwater mussels in Anhui Province， China. Methods The freshwater mussels living in different water areas within Anhui territory were harvested and dissected from April to May，2015. Then the flukes were collected from the pericardial cavities of the clams into a petri dish containing small amount of saline. After rinsing，the flukes were transferred into a bottle containing 70% ethanol for following identification by staining of the specimens prepared as previous protocol. Results A total of 3 007 calms in 12 species，including Unio doug? lasiae（603），Acuticosta chinensis（90），Lamprotula caveat（150），Lamprotula leai（250），Lanceolaria grayana（47），An? odonta pacifica（60），Anodonta woodiana（350），Cuneopsis heudei（100），Solenaia oleivora（150），Cristaria plicata （567），Hyriopsis cumingii（550）and Arconaia lanceolata（90）were dissected，in which 1 467 mussels were infected with the trematode Aspidogastrea，with an infection rate of 48.79%（1 467/3 007）. Totally，7 306 flukes belonging to 3 genera under the subclass of Aspidogastrea were isolated. These trematodes were genera of Aspidogaster，Lophotaspis and Cotylaspis. The in? fection density was from 1 to 128 capita for individual positive clam，with a mean infectiosity of 4.98（7306/1467）for each mus? sel. Conclusion The freshwater bivalves living in different water areas in Anhui Province are infected with the trematode Aspi? dogastrea. These flukes were identified as Aspidogaster sp. Lophotaspis sp. and Cotylaspis sp. belonging to subclass Aspidogas? tridae of family Aspidogastrea.

Key words: Aspidogastrea；Freshwater mussel；Anhui Province

摘要： 目的了解安徽省河蚌感染盾盘吸虫的种类。方法2015年4-5月采集安徽省16个地级市不同水域内的河 蚌，解剖暴露其内脏后，剥开围心腔将吸虫置于装有少许生理盐水的培养皿中清洗，然后再移入装有70%酒精的保存瓶 中备用。对检获的吸虫进行虫种鉴定。结果共解剖河蚌12种3 007只，其中圆顶珠蚌603只、中国尖嵴蚌90只、洞穴 丽蚌150只、背瘤丽蚌250只、短褶矛蚌47只、太平洋无齿蚌60只、背角无齿蚌350只、圆头楔蚌100只、橄榄蛏蚌150只、 褶纹冠蚌567只、三角帆蚌550只、扭蚌90只，其中感染盾盘吸虫的河蚌1 467只，感染率为48.79%。从感染盾盘吸虫的 河蚌体内检获盾盘亚纲吸虫7 306条，共3属，分别是腹盾属、簇盾属和杯盾属；阳性河蚌感染度为1~128条/只，平均感染 度为4.98条/只。结论安徽省不同水域河蚌均有盾盘吸虫感染，虫种为腹盾属、簇盾属和杯盾属吸虫。

关键词: 盾盘吸虫；河蚌；安徽省