南海溪蟹属一新种记述(十足目∶溪蟹科)
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摘要
目的调查福建省淡水蟹类的种类。方法采集福建省平潭县淡水蟹标本,进行形态学观察,调查孳生地和蟹感染并殖吸虫情况。结果发现一新种,定名为平潭南海溪蟹Nanhaipotamon pingtanense sp.nov.。平潭南海溪蟹正模(FJ6133,1)♂,头胸甲长36.1 mm,宽46.8 mm,厚26.7 mm;配模(FJ6133,2)♀,头胸甲长33.9 mm,宽42.7 mm,厚25.4 mm。雄性第1腹肢末节内末角方圆形,外末角粗壮,外末角末缘趋于窄小,外侧缘中部内凹;末第2节为末节的2.3倍。该蟹多栖息于水沟中,以泥洞穴居。采集的32只平潭南海溪蟹中未查见并殖吸虫囊蚴。结论记述采自福建省平潭县南海溪蟹属一新种,并与南海溪蟹中近似种的鉴别特征进行了分析讨论。
Objective To investigate the species of freshwater crabs in Fujian Province,China.Methods Fresh-water crabs were collected in Pingtan County of Fujian Province.The morphological characteristics of the crabs and the habitats were observed.The crab morphology was described and crabs examined for the presence of Paragonimus metacerariae.Results A new species of freshwater crabs named Nanhaipotamon pingtanense sp.nov.was obtained,holotype(FJ6133,1):♂,carapace length 36.1 mm,breadth 46.8 mm,thickness 26.7 mm;allotype(FJ6133,2):♀,carapace length 33.9 mm,breadth 42.7 mm,thickness 25.4 mm,collected from Pingtan County(N 26°52.958′;E 119°58.722′,and 16-47 m above sea lever).Distal segment of the first male pleopod with squarish-rounded inner-distal angle,and the comparatively stout out-distal angle’s end narrowed.The out-lateral border sloped downwards,concave situated in the middle.The segment length is 2.3 times as long as the subdistal segment.This species usually lived in the ditch and hid in mud hole.Paragonimus metacercariae were not found.Conclusion A new species of Nanhaipotamon collected from Pingtan County of Fujian Province were described,and named as Nanhaipotamon pingtanense.
Objective To investigate the species of freshwater crabs in Fujian Province,China.Methods Fresh-water crabs were collected in Pingtan County of Fujian Province.The morphological characteristics of the crabs and the habitats were observed.The crab morphology was described and crabs examined for the presence of Paragonimus metacerariae.Results A new species of freshwater crabs named Nanhaipotamon pingtanense sp.nov.was obtained,holotype(FJ6133,1):♂,carapace length 36.1 mm,breadth 46.8 mm,thickness 26.7 mm;allotype(FJ6133,2):♀,carapace length 33.9 mm,breadth 42.7 mm,thickness 25.4 mm,collected from Pingtan County(N 26°52.958′;E 119°58.722′,and 16-47 m above sea lever).Distal segment of the first male pleopod with squarish-rounded inner-distal angle,and the comparatively stout out-distal angle’s end narrowed.The out-lateral border sloped downwards,concave situated in the middle.The segment length is 2.3 times as long as the subdistal segment.This species usually lived in the ditch and hid in mud hole.Paragonimus metacercariae were not found.Conclusion A new species of Nanhaipotamon collected from Pingtan County of Fujian Province were described,and named as Nanhaipotamon pingtanense.
引文
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[4]Shih HT,Chen GX,Wang LM.A new species of freshwater crab(Decapoda∶Brachyura∶Potamidae)from Dong Island,Matsu,Taiwan,defined by morphological and molecular characters,withnotes on its biogeography[J].J Nat History,2005,39(31):2901-2911.
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[9]Dai AY.A revision of freshwater crabs of the genus Nanhaipota-mon Bott,1968 from China(Crustacea∶Decapoda∶Brachyura∶Potamidae)[J].Raffles Bull Zool,1997,45(2):209-235.
[10]Cheng YZ,Li LS,Lin GH,et al.Survey on the foci of Parag-onimus in Youxi,Yongtai and Pinghe Counties of FujianProvince[J].Chin J Parasitol Parasit Dis,2010,28(6):406-410.(in Chinese)(程由注,李莉莎,林国华,等.福建省尤溪、永泰与平和县并殖吸虫病疫源地调查[J].中国寄生虫学与寄生虫病杂志,2010,28(6):406-410.)
[2]Cheng YZ,Yang WC,Zhong YH.A new species of the genusNanhaipotamon(Decapoda∶Potamidae)[J].J Xiamen Univ(NatSci),2003,42(5):676-678.(in Chinese)(程由注,杨文川,钟耀豪.南海溪蟹属溪蟹属一新种[J].厦门大学学报(自然科学版),2003,42(5):676-678.)
[3]Cheng YZ,Li LS,Zhang Y.A new species of the genus Nan-haipotamon(Decapoda∶Potamidae)[J].Chin J Parasitol ParasitDis,2009,27(4):368-369.(in Chinese)(程由注,李莉莎,张仪.福建省霞浦县发现南海溪蟹属一新种(十足目∶溪蟹科)报告[J].中国寄生虫学与寄生虫病杂志,2009,27(4):368-369.)
[4]Shih HT,Chen GX,Wang LM.A new species of freshwater crab(Decapoda∶Brachyura∶Potamidae)from Dong Island,Matsu,Taiwan,defined by morphological and molecular characters,withnotes on its biogeography[J].J Nat History,2005,39(31):2901-2911.
[5]Shen YP.Practical Science on Paragonimiasis[M].2nd ed.Bei-jing:People’s Medical Publishing House,2008:49-50.(inChinese)(沈一平.实用肺吸虫病学[M].2版.北京:人民卫生出版社,2008:49-50.)
[6]Bott R.Potamiden aus Sud-Asien(Crustacea,Decapoda)[J].Senckenbergiana Biol,1968,49(2):119-130.
[7]Bott R.Die Süβsswasserkrabben von Europa,Asien,Australien undihre Stammengeschichte;Eine Revision der Potamoidea und derParathelphusoidea(Crustacea,Decapoda)[M].Frankfurt:Abhand-lungen der Senckenbergischen Naturforschenden Gesellschaft,1970,526:1-338.
[8]Dai AY,Feng ZQ,Chen GX,et al.Chinese Medicine Crustacean[M].Beijing:Sciene Press,1984:74-113.(in Chinese)(戴爱云,冯钟琪,陈国孝,等.中国医学甲壳动物[M].北京:科学出版社,1984:74-113.)
[9]Dai AY.A revision of freshwater crabs of the genus Nanhaipota-mon Bott,1968 from China(Crustacea∶Decapoda∶Brachyura∶Potamidae)[J].Raffles Bull Zool,1997,45(2):209-235.
[10]Cheng YZ,Li LS,Lin GH,et al.Survey on the foci of Parag-onimus in Youxi,Yongtai and Pinghe Counties of FujianProvince[J].Chin J Parasitol Parasit Dis,2010,28(6):406-410.(in Chinese)(程由注,李莉莎,林国华,等.福建省尤溪、永泰与平和县并殖吸虫病疫源地调查[J].中国寄生虫学与寄生虫病杂志,2010,28(6):406-410.)