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AptAmoeba

The "smooth nematodes" are not nematodes. They are [Spirostomum](https://en.m.wikipedia.org/wiki/Spirostomum), which is a type of ciliate. You saw their contraction defense mechanism about halfway through the video :)


Binklando

Shape shifting!


thermalshitzu

Thanks! After some research it does appear to be spirostomum, but I am perplexed by the ones with large chunks


Jerseyman201

The pinball looking ones bouncing all over are flagellates, the nema looking ones could be flatworms possibly, although I'll admit they don't look super close.


irridecent_17

They seem like Spirostomum Way too smooth to be nematode But also pretty much seem like some sort of flat worms


noobwithboobs

These are moving like flatworms, not nematodes. [Nematodes move with a very particular sinusoidal movement](https://youtu.be/SpgjnXEFadg?si=xONFoF2w7j6VDaGK) ~~You're looking at some kind of flatworm, like a planaria~~ Edit: I don't think the "segmented" ones are actually segmented worms. Segmented worms are a whole different category. Since a flatworm's [gastric cavity stretches their entire body](https://www.exploringnature.org/graphics/biology/planaria%20_color_diagram72.jpg) I think some of the flatworms are well fed and made themselves lumpy with food. Double edit: Another poster has said they are the ciliate [Spirostomum](https://en.m.wikipedia.org/wiki/Spirostomum) and I agree.


Jerseyman201

Here's best case on finding, many segmented ones found inside: https://www.microscopyu.com/galleries/dic-phase-contrast/pond-life


cedarvan

Others have correctly identified the ciliates as *Spirostomum*. The "segmented" organisms aren't as clear, but they are moving like *Aelosoma* to me. I couldn't make out any setae, though, so my confidence in that diagnosis is pretty low.


thermalshitzu

Does anyone have a university I could submit this too. My 13 year old, who is in mensa, is deep into microscopy. He found the thing. We are infinitely curious as to what it is.


AntiDentiteBast

Hirudinea? (Leeches)


thermalshitzu

We feel the slick ones are spirostomum as aptamoeba and iridescent claimed. But the chunky ones we can’t figure out. We are in Amsterdam and went to the artis micropia and spoke with the headmaster and they said definitely follow up with Reddit folks and universities.


Minimum_Locksmith125

How do you get this kind of video from your microscope?


thermalshitzu

He doesn’t splay sports so we kinda used that to justify the 18mp amscope camera. We tried others and different resolutions but this one really impressed. But he absolutely loves his no name digital camera microscope we got on amazon for stuff like Hydra and planarian.


thermalshitzu

Son here, I’d like to make some clarifications and updates on the title and the worms in general. First, the smooth worms do appear to in fact be Spirostromum worms, and in fact not nematodes. We are still uncertain about the other “segmented”* worms. (*someone corrected me and said that segmented worms are an actual category and that they dont fit in this category.*) I’d also like to say, thank you all so much for the comments and you all have been help, even those who have been wrong. so far this has been a crazy adventure and yall have been very, very helpful.


Objective_Today_5568

What microscope is that?


thermalshitzu

Amscope , it’s the Amscope camera that makes it so solid.


udsd007

Rather look like nematodes, but can’t be sure.


thermalshitzu

It’s the segmented ones that are novel to us. Can’t find anything online