Bursaria truncatella

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D0c
Posts: 267
Joined: Mon Nov 30, 2020 9:13 pm
Location: England

Bursaria truncatella

#1 Post by D0c » Sun Apr 11, 2021 4:37 pm

I'm hoping this is a Bursaria truncatella that I found lurking in one of my samples from a canal near to where I live.

There was quite a few of them in the sample. It has a large scoop mouth and i was hoping one of them would eat something but it never happened.

Video 1 (x300) - https://www.flickr.com/photos/154534235 ... datetaken/
Video 2 (300X) - https://www.flickr.com/photos/154534235 ... datetaken/
Video 3 (300X) - https://www.flickr.com/photos/154534235 ... datetaken/
Video 4 (600X) - https://www.flickr.com/photos/154534235 ... datetaken/
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Bruce Taylor
Posts: 986
Joined: Fri Sep 04, 2015 11:34 am

Re: Bursaria truncatella

#2 Post by Bruce Taylor » Sun Apr 11, 2021 5:14 pm

This little beauty is called Thylakidium. Very nice videos!

You'll know Bursaria truncatella when you see it. It's enormous and brown, with a mouth like a two-car garage. :D

D0c
Posts: 267
Joined: Mon Nov 30, 2020 9:13 pm
Location: England

Re: Bursaria truncatella

#3 Post by D0c » Sun Apr 11, 2021 5:45 pm

Thanks Bruce.

I have bought a new eyepiece and connected it to my phone so I now have higher magnification hence the videos are a little more detailed.

Because of the better videos can you tell which one it is T.truncatum or T. pituitosum
Leitz SM-Lux

Bruce Taylor
Posts: 986
Joined: Fri Sep 04, 2015 11:34 am

Re: Bursaria truncatella

#4 Post by Bruce Taylor » Sun Apr 11, 2021 7:13 pm

I can't see the macronucleus (round in T. pituitosum, sausage-like in T. truncatum), so nope.

If you see any living in a gelatinous lorica, then these are T. pituitosum.

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