A very large ciliate

Images made through a microscope. All subject types.

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Olympusman
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A very large ciliate

Post by Olympusman »

Possibly a Stentor coeruleus. About 2mm long. It has contracted somewhat due to the Cupric acetate added to the water drop. In the first shot I left in the amoeba test to give a scale indication.

Image

Image
Michael Reese Much FRMS EMS Bethlehem, Pennsylvania, USA

Bruce Taylor
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Post by Bruce Taylor »

It's not S. coeruleus, which has bluish pigment granules & no symbiotic algae. Are you sure it's a ciiate? Its internal structures are hidden by algae, but the membranes have a "squashed flatworm" look, to me. :D
It Came from the Pond (Blog): http://www.itcamefromthepond.com/

_Michal_
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Post by _Michal_ »

Very nice photos!
Best regards
Michal

vasselle
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Post by vasselle »

Superbe
Microscope Leitz Laborlux K
Boitier EOS 1200d

carlos.uruguay
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Post by carlos.uruguay »

Very pretty photos!
With them it is not possible to know what organism is it

Protos
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Post by Protos »

aestetically nice but biologically not recognizable
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Wild M20

Cactusdave
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Post by Cactusdave »

Nice picture. Pretty certain it's a flat worm looking rather unhappy.
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RogelioMoreno
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Post by RogelioMoreno »

Nice pictures.

Rogelio

Olympusman
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Ciliate

Post by Olympusman »

The body was outlined in very fine cilia and there were currents around the narrow left end that suggested filter feeding.
Michael Reese Much FRMS EMS Bethlehem, Pennsylvania, USA

Bruce Taylor
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Re: Ciliate

Post by Bruce Taylor »

Olympusman wrote:The body was outlined in very fine cilia and there were currents around the narrow left end that suggested filter feeding.
Microturbellarians are covered with cilia, which can create some confusion. I can't point to any anatomical features, but the "gestalt" looks wormy, to me. :)
It Came from the Pond (Blog): http://www.itcamefromthepond.com/

Protos
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Post by Protos »

Why did you add Cupric acetate ?
Zeiss Axiophot, transmitted and Fluorescence
BK5000, Transmitted and CP
Wild M20

Olympusman
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Cupric acetate

Post by Olympusman »

Cupric acetate is a very effective chemical to slow down (stun) and eventually kill water organisms for photography. Because its action is slow, it allows the organisms to be captured as they expire before they contract their extremities. I use a saturated solution applying one drop of Cupric acetate to one drop of pond water. I stir the solution with a teasing needle on the slide before applying the cover slip.
Michael Reese Much FRMS EMS Bethlehem, Pennsylvania, USA

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