Unidentified ciliate
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Unidentified ciliate
Zeiss Standard GFL Microscope
Ocular: Watson x8 Compensating
Objective: Leitz 40/0.7 ICT Fluotar
Substage: Leitz ICT
DIC
Sample from garden pond
Camera: Canon Powershot S50
Flash
Here are a selection of pictures of this ciliate. It was rather scoop shaped, or possibly a little like a grain of wheat, with a central groove, at one end of which was a large feature, probably the mouth. You can see its 3D shape in the bottom RH picture of the 1st set, and on the bottom pictures of the 2nd set. The bottom left picture of the 1st set shows the central depression in plan view. Its mode of swimming was very smooth and not too fast, with the occasional pirhouette. It appeared to be semi-rigid, deforming fairly easily, but always returning to the same shape. The surface was covered with rows of kineties.
Any ideas on identity?
Graham
Though we lean upon the same balustrade, the colours of the mountain are different.
Though we lean upon the same balustrade, the colours of the mountain are different.
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Re: Unidentified ciliate
Just guessing, but maybe a variety of Lembadion?
http://starcentral.mbl.edu/microscope/p ... =Lembadion
Tom
http://starcentral.mbl.edu/microscope/p ... =Lembadion
Tom
Could be Tom, but there are numerous cell inclusions not normally found in Lembadion or I would think so. There seems to be a postoral groove present in this organism that leads me to assume, maybe, that it is Frontonia leucas but still there are some organells missing there too. So I am still not sure. However you could be correct in your identification also.
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Ken, Graham,Ken Ramos wrote:Could be Tom, but there are numerous cell inclusions not normally found in Lembadion or I would think so. There seems to be a postoral groove present in this organism that leads me to assume, maybe, that it is Frontonia leucas but still there are some organells missing there too. So I am still not sure. However you could be correct in your identification also.
Here's an image from the protist website of Lembadion.
http://protist.i.hosei.ac.jp/PDB/Images ... badion.jpg
Maybe Graham's specimen could have a larger scoop for it to be Lembadion.
Not sure.
Tom
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I made a hasty webpage of a possible Lembadion ( not positive ) with a 20 second video shot at 1000x magnification bight field. I'm not sure if this is similar to Graham's specimens but at 16 seconds into the movie the protozoan does a couple of possible "pirhouettes."
http://www.heliotown.com/Possible_Lembadion.html
Tom
(Hoping to get better at identifying, using mostly D. J. Patterson's Free-Living Freshwater Protozoa and also Jahn's How to Know the Protozoa. )
http://www.heliotown.com/Possible_Lembadion.html
Tom
(Hoping to get better at identifying, using mostly D. J. Patterson's Free-Living Freshwater Protozoa and also Jahn's How to Know the Protozoa. )
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