Urocentrum (ciliate) rapid movement

Description:

[taxonomy:genus=Urocentrum] Date: 7 Sep 2011, originally collected 6 Sep 2011 Location: Freshwater stream flowing out of MacRitchie Reservoir, close to Venus Drive entrance. On field trip with NUS freshwater biology class. Stream was brown with sandy bottom, water mostly clear. Microscope: Bright-field with closed condenser aperture. Camera: Nikon D7000 Collector: Brandon Seah Scale: 20830 pixels/mm = 20.8 pixels/µm (40x)