Notes on Two Marine Ciliates from the Yellow Sea,China: Placus salinus and Strombidium apolatum(Protozoa, Ciliophora) |
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摘 要: | The living morphology and infraciliature of two rare marine ciliates, Placus salinus Dietz, 1964 and Strombidium apolatum Wilbert and Song, 2005, collected from the coastal waters near Qingdao, China, were investigated by in vivo observation and protargol impregnation technique. The improved diagnosis for Placus salinus is as follows: medium-sized marine Placus, in vivo (50–60)μm×(30–40)μm; cell elliptical to barrel-shaped; 28–31 somatic kineties; single macronucleus usually ellipsoid and
one micronucleus located in the indention of the macronucleus; one contractile vacuole posteriorly positioned. Strombidium apolatum is characterized by: marine strombidium (40–60)μm×(30–45)μmm in vivo, cordiform in shape with somewhat pointed posterior end and conspicuous apical protrusion; extrusomes prominent, about 15μm
in length and evenly arranged along the circle kinety; about 16 collar and 5–6 buccal membranelles; one elongate macronucleus
and one micronucleus; circle and ventral kineties consisting of about 53 and 45 dikinetids respectively.
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关 键 词: | 海洋纤毛虫 形态学 青岛市 观测方法 生活习性 |
收稿时间: | 12 November 2004 |
修稿时间: | 4 March 2005 |
Notes on two marine ciliates from the Yellow Sea,China: <Emphasis Type="Italic">Placus salinus</Emphasis> and <Emphasis Type="Italic">Strombidium apolatum</Emphasis> (Protozoa,Ciliophora) |
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Authors: | Xu?Dapeng Email author" target="_blank">Song?Weibo?Email author Hu?Xiaozhong |
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Institution: | (1) Laboratory of Protozoology, KLM, Ocean University of China, 266003 Qingdao, P.R.China |
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Abstract: | The living morphology and infraciliature of two rare marine ciliates, Placus salinus Dietz, 1964 and Strombidium apolatum Wilbert and Song, 2005, collected from the coastal waters near Qingdao, China, were investigated by in vivo observation and protargol impregnation technique. The improved diagnosis for Placus salinus is as follows: medium-sized marine Placus, in vivo (50–60)μm×(30–40)μm; cell elliptical to barrel-shaped; 28–31 somatic kineties; single macronucleus usually ellipsoid and
one micronucleus located in the indention of the macronucleus; one contractile vacuole posteriorly positioned. Strombidium apolatum is characterized by: marine strombidium (40–60)μm×(30–45)μmm in vivo, cordiform in shape with somewhat pointed posterior end and conspicuous apical protrusion; extrusomes prominent, about 15μm
in length and evenly arranged along the circle kinety; about 16 collar and 5–6 buccal membranelles; one elongate macronucleus
and one micronucleus; circle and ventral kineties consisting of about 53 and 45 dikinetids respectively. |
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Keywords: | marine ciliates Placus salinus Strombidium apolatum |
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