Two new marine scuticociliates,Sathrophilus planus n. sp. and Pseudoplatynematum dengi n. sp., with improved definition of Pseudoplatynematum (Ciliophora,Oligohymenophora) |
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| Authors: | Xinpeng Fan Xiangrui Chen Weibo Song Khaled AS Al-Rasheid Alan Warren |
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| Institution: | 1. Laboratory of Protozoology, Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao 266003, China;2. Zoology Department, King Saud University, Riyadh 11451, Saudi Arabia;3. Department of Zoology, Natural History Museum, London SW7 5BD, UK;1. Institute of Systematics and Evolution of Animals, Polish Academy of Sciences, Kraków 31-016, S?awkowska 17, Poland;2. Laboratory of Protistology and Experimental Zoology, Faculty of Biology and Soil Science, St. Petersburg State University, Universitetskaya nab. 7/9, Saint Petersburg 199034, Russia;3. Department of Microbiology, Faculty of Biology and Soil Science, St. Petersburg State University, Universitetskaya nab. 7/9, Saint Petersburg 199034, Russia;1. Department of Environmental Biotechnology, University of Warmia and Mazury in Olsztyn, Sloneczna 45G, 10-709 Olsztyn, Poland;2. Department of Tourism, Recreation and Ecology, University of Warmia and Mazury in Olsztyn, Oczapowskiego 5, 10-957 Olsztyn, Poland;1. College of Fisheries, & Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266003, China;2. Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao 266003, China;1. Cell Biology and Immunology Group, Department of Animal Sciences, Wageningen University, Wageningen PG 6709, Netherlands;2. Departamento de Microbiología y Parasitología, Universidad de Santiago de Compostela, Santiago de Compostela, Spain;3. Departamento de Biología Celular y Ecología, Universidad de Santiago de Compostela, Santiago de Compostela, Spain;1. Shanghai Universities Key Laboratory of Marine Animal Taxonomy and Evolution, College of Fisheries and Life Science, Shanghai Ocean University, Shanghai 201306, China;2. National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai 201306, China;3. Technische Universität Kaiserslautern, Ecology Group, D-67663 Kaiserslautern, Germany;4. Engineering Research Center of Enrivonmental DNA and Ecological Water Health Assessment, Shanghai Ocean University, Shanghai 201306, China;1. Laboratory of Microbiota, College of Life Science, Northwest Normal University, Lanzhou 730070, China;2. Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao 266003, China;3. College of Resources and Environmental Sciences, Gansu Agricultural University, Lanzhou 730070, China;4. Department of Life Sciences, Natural History Museum, London SW7 5BD, UK;5. College of Life Sciences, Capital Normal University, Beijing 100048, China |
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| Abstract: | Two new marine scuticociliates, Sathrophilus planus n. sp. and Pseudoplatynematum dengi n. sp., isolated from coastal waters of Qingdao, northern China, were investigated using live observation and silver impregnations. Sathrophilus planus can be recognized by its elongate and conspicuously flattened body, ca. 16 somatic kineties, single postoral kinety, extremely elongated first kinety row of membranelle 1, and its marine habitat. Among these features, the structure of membranelle 1 is the most characteristic and enables this species to be easily distinguished from its congeners. Pseudoplatynematum dengi is characterized by the following features: cell surface conspicuously strengthened and notched; prominent spines both at anterior and posterior ends of cell; membranelles 1 and 2 three-rowed, membranelle 3 single-rowed; paroral membrane composed of two parts, anterior end of upper part extending to about level of membranelle 2; ca. 20 somatic kineties, one postoral kinety; single prolonged caudal cilium; contractile vacuole caudally positioned. The diagnosis of the genus Pseudoplatynematum was renewed to include some new characteristics revealed by silver impregnation methods. |
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