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[taxonomy:genus=Vorticella]
Date:
23 Aug 2011
Location:
Small lake in Kent Ridge Park. Water margin with vegetation, brown sediment with organic detritus. Tadpoles resting nearby.
Microscope:
Bright-field with closed condenser aperture.
Camera:
Nikon D7000
Collector:
Brandon Seah
Scale:
20830 pixels/mm = 20.8 pixels/µm
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[taxonomy:genus=Disematostoma]
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)
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[taxonomy:genus=Cinetochilum]
A scuticociliate with ventral ciliature and a flattened-oval body. It swims around and also uses its cilia to "walk" on substrates, as this video shows. Three long "tail" (caudal) cilia.
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[taxonomy:genus=Thuricola]
This is a ciliate living inside a vase-shaped "lorica", or shell, that comes with its own lid that shuts behind the cell when it retracts into its den. Unfortunately, my attempt to "tap on the glass" and have it retract were not successful. Note the streaming of particles in the water due to the feeding current set up by the cilia of the creature.
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[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)
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[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)
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[taxonomy:genus=Cyclidium]
Date:
12 Aug 2011
Location:
Permanently wet longkang beside NUS Enterprise Incubator, under shade of large banyan tree. Drain full of leaf litter and shed banyan roots. Water clear, not green, grey-brown floc when bottom and litter stirred.
Microscope:
Bright-field with closed condenser aperture.
Camera:
Nikon D7000
Collector:
Brandon Seah
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[taxonomy:genus=Cyclidium]
Date:
12 Aug 2011
Location:
Permanently wet longkang beside NUS Enterprise Incubator, under shade of large banyan tree. Drain full of leaf litter and shed banyan roots. Water clear, not green, grey-brown floc when bottom and litter stirred.
Microscope:
Bright-field with closed condenser aperture.
Camera:
Nikon D7000
Collector:
Brandon Seah
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Description: English: Vorticella campanula. From a garden pond in Munich, Germany. 10x objective, image width: 350 µm. See
here for imaging details Deutsch: Glockentierchen (Vorticella campanula) aus einem süddeutschen Gartenteich. 10x Objektiv, Bildbreite: 350 µm. Siehe
hier für Bildgenerierungsdetails. Date: 20. April 2008 (recording immediately after collection). Source: Own work. Author:
Dietzel65.
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Description: English: Paramecium caudatum in conjugation. Date: 16 February 2013, 13:28:12. Source: Own work. Author:
Deuterostome.
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Description: English: Paramecium bursaria, a species of Paramecium with symbiotic algae. Date: 16 February 2013, 12:55:35. Source: Own work. Author:
Deuterostome.
