并殖吸虫宿主淡水蟹类两新种记述(十足目∶溪蟹科)  

Two New Species of Freshwater Crabs (Decapoda : Potamidae) Serving as Intermediate Hosts of Paragonimus in Fujian,China

作　　者：程由注[1] 林国华[2] 李友松[1] 

机构地区：[1]福建省疾病预防控制中心,福州350000 [2]福建省龙海市疾病预防控制中心,龙海363100

出　　处：《中国寄生虫学与寄生虫病杂志》2010年第4期241-245,共5页Chinese Journal of Parasitology and Parasitic Diseases

基　　金：科技部自然资源平台项目(No.2005DK21100)~~

摘　　要：目的调查福建省平和县和尤溪县并殖吸虫宿主溪蟹的自然资源。方法采集淡水蟹标本,进行形态学观察,调查栖息地和蟹感染并殖吸虫的情况。结果采自福建平和县和尤溪县的淡水溪蟹为2新种,漳州华溪蟹Sinopotamon zhangzhouense sp.nov.和尤溪博特溪蟹Bottapotamon youxiense sp.nov.。漳州华溪蟹正模(FJ6031)♂,头胸甲长35.9mm,宽42.8mm,厚18.6mm;雄性第1腹肢末节末部趋扁,并呈掌心样内凹,末端为两尖指状分左右两叶,背面可辨纵条痕,末节末半部转折向外方;多栖息于水流量小而平缓的浅溪沟中。尤溪博特溪蟹正模(FJ6141)♂,头胸甲长13.3mm,宽16.6mm,厚7.2mm;雄性第1腹肢末节略呈扁状,宽大而发达,呈弯弓样隆起;多栖息于地势较为平坦而水流细小的山坑小沟。漳州华溪蟹的卫氏并殖吸虫和三平正并殖吸虫囊蚴检出率为44.9%(35/78)。尤溪博特溪蟹的斯氏并殖吸虫囊蚴检出率为92.1%(58/63)。结论记述淡水溪蟹2新种,漳州华溪蟹和尤溪博特溪蟹,均为并殖吸虫的第二中间宿主。Objective To investigate the natural resources of the freshwater crab which can serve as the intermediate hosts of Paragonimus in Pinghe and Youxi of Fujian Province.Methods Freshwater crabs were collected.The morphological characteristics of the crabs and the habitats were observed.The crabs were dissected and examined for the presence of Paragonimus metacercariae.Results Two new species of crabs were described,named as Sinopotamon zhangzhouense sp.nov.and Bottapotamon youxiense sp.nov..S.zhangzhouense sp.nov.,holotype：♂,carapace length 35.9 mm,breadth 42.8 mm,thickness 18.6 mm,collected from Pinghe County in southwest of Fujian.（24°14.206′N,117°12.594′E）.Distal segment of the first pleopod of male tended flattish,and showed palm nest-shaped concave,which divided into two point leafs,and longitudinal crack clearly identified in back.The end half of distal segment reversed to ventral outwardly.This species usually lived in the sluggish stream.The infection rate of Paragonimus westermani and P.cenocopiosus in S.zhangzhouense sp.nov.was 44.9%（35/78）.B.youxiense sp.nov.,holotype：♂,carapace length 13.35 mm,breadth 16.63 mm,thickness 7.20 mm,collected from Youxi County in central Fujian （26°10.558′N,118°22.012′E）.The first pleopod of male was in slightly flat shape,ample and developed,as bow-like uplift.This species usually lived in the relatively flat terrain of stream.The infection rate of P.skrjabini metacercariae in B.youxiense sp.nov.was 92.1% （58/63）.Conclusion Two new species of freshwater crabs （S.zhangzhouense sp.nov.and B.youxiense sp.nov.） serving as the intermediate hosts of Paragonimus have been described.

关 键 词：华溪蟹属 博特溪蟹属 新种 并殖吸虫 中间宿主 

分 类 号：R389[医药卫生—医学寄生虫学]