triangular flagellate ID

nanometer · Post by **nanometer** » Sun Nov 04, 2018 11:12 am

Hi,

I'm stumped on this flagellate. I encountered a bunch of these. They are about 12-13um not including the flagella. They appear to have two flagella. In the second shot, the aspect is such that the flagellum looks to come out a fold in the body. My searches have ended in failure. If it's any help, the freshwater was quite putrid, and these move through the water by slowly tumbling.

Thanks for any help and sorry to people who are annoyed by these 'help me ID this posts'.

Steve

Smokedaddy · Post by **Smokedaddy** » Sat Jan 12, 2019 10:35 am

... maybe ...

https://en.wikipedia.org/wiki/Giardia_lamblia

nanometer · Post by **nanometer** » Fri Jan 25, 2019 6:46 am

Hi Smokedaddy. Thanks for the suggestion. So far, it's the best guess I have on what it might be.

Lou Jost · Post by **Lou Jost** » Fri Jan 25, 2019 8:51 am

How cool to see this organism! It has ruined many a trip for my friends and I in Latin America.

ChrisR · Post by **ChrisR** » Fri Jan 25, 2019 5:33 pm

Well Lou, now you know what it looks like, if you feel off color you can check for yourself:

"The entero-test uses a gelatin capsule with an attached thread. One end is attached to the inner aspect of the patient's cheek, and the capsule is swallowed. Later, the thread is withdrawn and shaken in saline to release trophozoites which can be detected with a microscope."

Lou Jost · Post by **Lou Jost** » Fri Jan 25, 2019 7:01 pm

"The entero-test uses a gelatin capsule with an attached thread. One end is attached to the inner aspect of the patient's cheek, and the capsule is swallowed. Later, the thread is withdrawn and shaken in saline to release trophozoites which can be detected with a microscope."

[/quote]

I think I will just live in blissful ignorance...!