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暹罗盾蛭Placobdelloides siamensis的重新描述，包括新的宿主物种和地理分布范围。

Redescription of the Siamese shield leech Placobdelloides siamensis with new host species and geographic range.

作者信息

Chiangkul Krittiya, Trivalairat Poramad, Purivirojkul Watchariya

机构信息

Animal Systematics and Ecology Speciality Research Unit, Department of Zoology, Faculty of Science, Kasetsart University, 50 Ngam Wong Wan Road, Chatuchak, Bangkok 10900, Thailand.

出版信息

Parasite. 2018;25:56. doi: 10.1051/parasite/2018056. Epub 2018 Nov 26.

DOI:10.1051/parasite/2018056
PMID:30474597
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6254108/
Abstract

The Siamese shield leech Placobdelloides siamensis (Oka, 1917) Sawyer, 1986 (Euhirudinea: Glossiphoniidae) was collected from five new host species, Southeastern Asian Box Turtle (Cuora amboinensis), Yellow-headed Temple Turtle (Heosemys annandalii), Malayan Snail-eating Turtle (Malayemys macrocephala), Mekong Snail-eating Turtle (M. subtrijuga), and Khorat Snail-eating Turtle (M. khoratensis) and was found for the first time in Udon Thani, Thailand. Examination of live leeches provided, for the first time, data on coloration and the combination of parental care behavior, both carrying cocoons and attaching cocoons to the substrate. This species was separated from its congeners based on the following characters: one pair of eyes; spines at proboscis subterminal; mouth terminal on oral sucker; absent plaque in neck region; gonopores located in furrow and separated by two annuli; distinctly triannulated mid-body segments; crop with seven pairs and branched caeca; caudal sucker slightly over half of maximum body width; and strongly dorsal papillae. Phylogenetic relationships based on the COI and ND1 genes were clarified and demonstrated that the species is distinct from others. The original description was amended and the taxonomic history is discussed.

摘要

暹罗盾蛭Placobdelloides siamensis（奥卡，1917年）索耶，1986年（真蛭目：舌蛭科）采自五个新宿主物种，即东南亚箱龟（锯缘摄龟）、黄头庙龟（安南龟）、马来食蜗龟（巨头马来龟）、湄公食蜗龟（三脊马来龟）和呵叻食蜗龟（科拉特马来龟），且首次在泰国乌隆府发现。对活体水蛭的检查首次提供了关于体色以及亲代抚育行为（携带茧并将茧附着在基质上）组合的数据。该物种基于以下特征与同属其他物种区分开来：一对眼睛；吻部亚末端有刺；口位于口吸盘末端；颈部区域无斑块；生殖孔位于沟内，被两个环带隔开；身体中部明显有三个环带；嗉囊有七对且盲肠分支；尾吸盘略超过最大体宽的一半；以及有明显的背乳突。基于COI和ND1基因的系统发育关系得以阐明，并证明该物种与其他物种不同。对原始描述进行了修订，并讨论了分类学历史。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/64b8/6254108/5e7a0505e9cb/parasite-25-56-fig6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/64b8/6254108/faa4c7ab5bce/parasite-25-56-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/64b8/6254108/afb7e9cc042f/parasite-25-56-fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/64b8/6254108/77cf826d5a92/parasite-25-56-fig3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/64b8/6254108/255c04d741d6/parasite-25-56-fig4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/64b8/6254108/557fef0be1c7/parasite-25-56-fig5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/64b8/6254108/5e7a0505e9cb/parasite-25-56-fig6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/64b8/6254108/faa4c7ab5bce/parasite-25-56-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/64b8/6254108/afb7e9cc042f/parasite-25-56-fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/64b8/6254108/77cf826d5a92/parasite-25-56-fig3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/64b8/6254108/255c04d741d6/parasite-25-56-fig4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/64b8/6254108/557fef0be1c7/parasite-25-56-fig5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/64b8/6254108/5e7a0505e9cb/parasite-25-56-fig6.jpg

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本文引用的文献

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A redescription of the Australian leech Placobdelloides bancrofti with new records of its distribution.澳大利亚水蛭班氏拟扁蛭的重新描述及其分布新记录
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Studies on Indian Rhynchobdellid leeches. I.关于印度吻蛭的研究。一。
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Phylogeny of the leech family Glossiphoniidae based on mitochondrial gene sequences and morphological data.基于线粒体基因序列和形态学数据的舌蛭科水蛭的系统发育研究
（奥卡，1917年）（舌蛭科：蛭纲）在食蜗龟属物种中的寄生现象以及宿主和水生环境因素的影响
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Batracobdelloides bangkhenensis sp. n. (Hirudinea: Rhynchobdellida), a new leech species parasite on freshwater snails from Thailand.湄公巴倍蛭新种（蛭纲：吻蛭目），寄生在泰国淡水螺类的一种新型蛭类寄生虫。
Parasitol Res. 2021 Jan;120(1):93-107. doi: 10.1007/s00436-020-06919-6. Epub 2020 Nov 4.
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sp. nov., a new species of glossiphoniid leech and a parasite of turtles from lower southern Thailand (Hirudinea, Rhynchobdellida).新种，一种来自泰国南部低地的龟寄生舌蛭科水蛭新物种（蛭纲，吻蛭目）。
Zookeys. 2019 Oct 23;882:1-24. doi: 10.3897/zookeys.882.35229. eCollection 2019.
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