What is a protozoan ?

Images made through a microscope. All subject types.

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Jacek
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What is a protozoan ?

Post by Jacek »

What is a protozoan?

1 - Zeiss GF-Plan 40/0.65 [DIC]
2 - DF
3 - Olympus Plan Apo 100/1.40 [DIC]

foto: Lumix TZ8

Image
Image
Image

Jacek
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Post by Jacek »

YouTube compression, the image has deteriorated considerably.
Video helps somebody can help identify

http://youtu.be/8-DHKQVz3UQ

ob. 40 i 100X /DIC

Bruce Taylor
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Post by Bruce Taylor »

Superb. They're certainly Hymenostomes (lovely, clear view of the membranelles / parorals). I want to suggest Glaucoma sp., but I'm unaccustomed to seeing them in DIC.

edit to add "membranelles"...the video shows the triplets beautifully.
Last edited by Bruce Taylor on Sat Dec 03, 2011 2:59 pm, edited 2 times in total.

Jacek
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Post by Jacek »

Thank you

Mitch640
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Post by Mitch640 »

Jacek, you can turn up the compression from 360 to 720p and watch it larger if you want. :)

I am curious about the little mouths, are they really the cell mouth?

Jacek
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Post by Jacek »

I know, the original video is in 720p and has a much better quality than on YouTube.
Some of the films after the publication look good and this is clearly of inferior quality

I hope you are well-understood :D

Mitch640
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Post by Mitch640 »

Ah, I see what you mean. I don't think I ever noticed on YouTube, but have seen websites that are somehow able to turn down the quality of images at different times of day.

Bruce Taylor
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Post by Bruce Taylor »

Mitch640 wrote:I am curious about the little mouths, are they really the cell mouth?
Yes. Hymenostome ciliates like Ophryoglena, Glaucoma & Tetrahymena have a set of three membranelles on one side of the cytostome and a paroral membrane on the other.

Bruce Taylor
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Post by Bruce Taylor »

Glaucoma, as drawn by Stuart Hedley, for David Patterson:

Image

Jacek
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Post by Jacek »

Bruce thank you very much, so it is Glaucoma sp.

Mitch640
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Post by Mitch640 »

The video was very interesting, a bunch of little heads swimming around with their mouths working. :)

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