| SHI Benze,YU Tingting,XU Kuidong. 2018. A new free-living nematode, Actinonema falciforme sp. nov. (Nematoda: Chromadoridae), from the continental shelf of the East China Sea. Acta Oceanologica Sinica, 37(10):152－156 |
| A new free-living nematode, Actinonema falciforme sp. nov. (Nematoda: Chromadoridae), from the continental shelf of the East China Sea |
| 东海大陆架自由生活海洋线虫一新种:镰刀光皮线虫(线虫:色矛科) |
| Received:August 13, 2017 |
| DOI：10.1007/s13131-018-1318-x |
| Key words:East China Sea free-living marine nematodes new species |
| 中文关键词: 东海 自由生活海洋线虫 新种 |
| 基金项目:The Strategic Priority Research Program of the Chinese Academy of Sciences under contract No. XDA11030201; the National Natural Science Foundation of China under contract No. 41706163; China Postdoctoral Science Foundation under contract No. 2016M602201. |
| Author Name | Affiliation | E-mail | | SHI Benze | Department of Marine Organism Taxonomy and Phylogeny, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China | | | YU Tingting | Department of Marine Organism Taxonomy and Phylogeny, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China | | | XU Kuidong | Department of Marine Organism Taxonomy and Phylogeny, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
Laboratory for Marine Biology and Biotechnology, Pilot National Laboratory for Marine Science and Technology(Qingdao), Qingdao 266237, China
University of Chinese Academy of Sciences, Beijing 100049, China | kxu@qdio.ac.cn |
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| Abstract: |
| Actinonema falciforme sp. nov. was discovered from the continental-shelf sediments of the East China Sea. It is characterized by six outer labial setae and four cephalic setae in one circle, complex and heterogeneous cuticular ornamentation with lateral differentiation, large and conspicuous amphideal fovea which is transversely oval-shaped, a single anterior testis, two opposed reflexed ovaries, falciform telamon (lateral pieces of gubernaculum), and the lack of spicule and gubernaculum. Within the genus Actinonema, only A. longicaudatum and the new species possess telamon and lack spicule and gubernaculum. Actinonema falciforme sp. nov. can be easily differentiated from A. longicaudatum by its much shorter body length, the peculiar shape of the telamon and a shorter tail. |
| 中文摘要: |
| 于东海陆架沉积物中发现并描述一自由生活海洋线虫新种：镰刀光皮线虫Actinonema falciforme sp.nov.镰刀光皮线虫的主要鉴定特征为：六根外唇刚毛和四根头刚毛成一圈；表皮具复杂而前后不同的装饰和侧分化；大而明显的化感器椭圆形，中间具一横裂口；单前精巢，反折；前后双卵巢，反折；缺失交接刺和引带，仅具有镰刀形引带侧件。在光皮线虫属中，只有镰刀光皮线虫和长尾光皮线虫A.longicaudatum缺失交接刺和引带，而仅具有引带侧件。镰刀光皮线虫可根据较短的体长、镰刀形引带侧件和较短的尾部而区别于长尾光皮线虫。 |
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