| LEI Yanli,LI Tiegang. 2018. Morphology of four Miliolinella species (Foraminifera, Protozoa) with description of a new species, Miliolinella obesa nov. spec., from the tropical West Pacific Ocean. Acta Oceanologica Sinica, 37(10):64－69 |
| Morphology of four Miliolinella species (Foraminifera, Protozoa) with description of a new species, Miliolinella obesa nov. spec., from the tropical West Pacific Ocean |
| 热带西太平洋的小粟虫属的四种有孔虫(原生动物)的形态学研究以及Miliolinella obesa nov. spec. 新种描述 |
| Received:July 25, 2017 |
| DOI：10.1007/s13131-018-1301-6 |
| Key words:deep sea foraminifera Miliolinella seamount seabed West Pacific Ocean |
| 中文关键词: 深海 有孔虫 小粟米虫属 海山 海床 西太平洋 |
| 基金项目:The Scientific and Technological Innovation Project financially supported by Qingdao National Laboratory for Marine Science and Technology under contract Nos 2016ASKJ13 and 2016ASKJ14; the National Basic Research Program of China (973 Program) under contract No. 2015CB755902; the National Natural Science Foundation of China under contract No. 41476043. |
| Author Name | Affiliation | E-mail | | LEI Yanli | Department of Marine Organism Taxonomy and Phylogeny, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China
University of Chinese Academy of Sciences, Beijing 100049, China | leiyanli@qdio.ac.cn | | LI Tiegang | Key Laboratory of Marine Sedimentology and Environmental Geology, the First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China
Laboratory for Marine Geology, Pilot National Laboratory for Marine Science and Technology(Qingdao), Qingdao 266061, China
Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China | tgli@fio.org.cn |
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| Abstract: |
| Foraminiferal oozes were sampled from the tropical West Pacific seamount and seabed of deep sea, by a remotely operated vehicle (ROV) in December 2014 and March 2016. Using standard morphological method, four Miliolinella species, including Miliolinella obesa, M. circularis, M. suborbicularis and M. subrotunda were described. Among the four species, M. obesa is a new species. It is a large member (about 500 μm in length) of the genus. This species is characterized by having a very stout and transverse broadly circular outline, and its body width is greater than the body length. In addition, its chamber demarcations are obscure from the exterior appearance. Three chambers are unclearly visible on one side and two chambers are visible on the opposite. Finally, we provided very detailed taxonomic microphotographs and the ecological distribution information for each species. |
| 中文摘要: |
| 本研究借助远程遥控潜水器（ROV），于2014年和2016年分别对热带西太平洋深海海山和海底的有孔虫底泥进行了采集。利用形态学研究的标准方法，对小粟虫属的四种有孔虫Miliolinella obesa，M.circularis，M.suborbicularis和M.subrotunda进行了分类学研究，确定其中M.obesa为新种。该新种是小粟虫属中体型较大的成员（体长约达500 μm），其最突出的特征在于体型十分矮胖且横宽，尤其是其体宽大于体长。此外，该种区别于其他已知种的特点还包括，新种的房室界限在外观上模糊不清，壳体一面模糊可见3个房室，另外一面仅见2个房室。本文对于有孔虫Miliolinella属的四个种均给出了细节详尽的分类学图版和生态学分布信息。 |
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