Not an amoeba?

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cuxlander
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Not an amoeba?

#1 Post by cuxlander » Thu Mar 12, 2020 9:59 am

Hello,

At first glance this 232 µm high specimen from bog water looks like a testate amoeba

Image

However, there are to my knowledge no testacea with a round circumference and a rather clear grainy surface with litte pimples around the fundus. The inner structure seems to form a unit with the shell.
I suspected first a rotatoria similar to Habrotrocha angustcollis, but no match.
Any idea? Something from above water?

Thanks,
Hans

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75RR
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Re: Not an amoeba?

#2 Post by 75RR » Thu Mar 12, 2020 10:22 am

Vaginicola lorica (tubular case)?
Zeiss Standard WL (somewhat fashion challenged) & Wild M8
Olympus E-P2 (Micro Four Thirds Camera)

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KD Arvidsson
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Re: Not an amoeba?

#3 Post by KD Arvidsson » Thu Mar 12, 2020 8:40 pm

Fantastic photo!!! //KD
Microscope Nikon Labophot 2
Novel N-200M
My home is on the Westcoast of Sweden.
https://www.youtube.com/channel/UCjsgbq ... dyl2x0Atpw

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cuxlander
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Re: Not an amoeba?

#4 Post by cuxlander » Fri Mar 13, 2020 6:34 pm

Thanks,

@75RR Yes I'm sure the right direction. Problem is the size and regular shape of my specimen.

Hans

thomas.schwarz
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Re: Not an amoeba?

#5 Post by thomas.schwarz » Fri Mar 13, 2020 10:59 pm

Beautiful. Proof of alien life on Earth.

Bruce Taylor
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Re: Not an amoeba?

#6 Post by Bruce Taylor » Wed Mar 25, 2020 12:41 pm

Very odd. I'm unaware of any ciliate (vaginicolid, metacystid, etc.) with such a complex lorica.

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cuxlander
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Re: Not an amoeba?

#7 Post by cuxlander » Sat Mar 28, 2020 6:20 pm

Hello, thanks to all.
It will remain a secret.
Hans

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cuxlander
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Re: Not an amoeba?

#8 Post by cuxlander » Sat Mar 28, 2020 6:21 pm

Hello, thanks to all.
It will remain a secret.
Hans

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75RR
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Re: Not an amoeba?

#9 Post by 75RR » Sat Mar 28, 2020 6:57 pm

It is shaped rather like a lobster trap but I suppose the double door entrance could be defensive.
Zeiss Standard WL (somewhat fashion challenged) & Wild M8
Olympus E-P2 (Micro Four Thirds Camera)

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cuxlander
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Re: Not an amoeba?

#10 Post by cuxlander » Mon Mar 30, 2020 10:27 am

Hello 75RR,

yes lobster trap was my first impression, too, which this photograph shows even more clearly (glycerine and slight polarised light):

Image


Still, the riddle remains!

Cheers,
Hans

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