Notes on Two Marine Ciliates from the Yellow Sea,China:Placus salinus and Strombidium apolatum(Protozoa,Ciliophora)  

作　　者：XUDapeng SONGWeibo HUXiaozhong 

机构地区：[1]LaboratoryofProtozoology,KLM,OceanUniversityofChina,Qingdao266003,P.R.China

出　　处：《Journal of Ocean University of China》2005年第2期137-144,共8页中国海洋大学学报（英文版）

基　　金：supported by‘The National Science Foundation of China’(Nos.40376045,30430090)

摘　　要：The living morphology and infraciliature of two rare marine ciliates, Placussalinus Dietz, 1964 and Strombidium apolatum Wilbert and Song, 2005, collected from the coastalwaters near Qingdao, China, were investigated by in vivo observation and protargol impregnationtechnique. The improved diagnosis for Placus salinus is as follows: medium-sized marine Placus, invivo (50-60) μm X (30-40) μm; cell elliptical to barrel-shaped; 28-31 somatic kineties; singlemacronucleus usually ellipsoid and one micronucleus located in the indention of the macronucleus;one contractile vacuole posteriorly positioned. Strombidium apolatum is characterized by: marinestrombidium (40-60) μm X (30-45) μm in vivo, cordiform in shape with somewhat pointed posteriorend and conspicuous apical protrusion; extrusomes prominent, about 15 μm in length and evenlyarranged along the circle kinety; about 16 collar and 5-6 buccal membranelles; one elongatemacronucleus and one micronucleus; circle and ventral kineties consisting of about 53 and 45dikinetids respectively.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) μm 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.

关 键 词：marine ciliates Placus salinus Strombidium apolatum 

分 类 号：Q959.1[生物学—动物学] Q178.53