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Entosiphon
Species name:Entosiphon sp.
Bureau of Swerage, Tokyo Metropolitan Goverment
Entosiphon has a width of 10-25 micrometers and length of 15-20 micrometers. The morphology is a slightly flat oval body. Two flagella extend from the pharyngeal region of the top portion. The outer cell body is rigid, and the cell shape is maintained. It swims with a waving tail. It is very hard to observe a vigorous vibrating front flagellum in the still image. On the other hand, the flagellum trailing backward is easy to observe. In the video, a vigorous vibrating front flagellum is observed very well.