testate amoebas ?

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mintakax
Posts: 174
Joined: Mon Jul 29, 2019 12:06 am
Location: Boulder CO, USA

testate amoebas ?

#1 Post by mintakax » Mon Aug 26, 2019 7:47 pm

Here is a short compilation of 6 creatures I have observed this week. I'm not sure if the last four are testate amoebas or not. I know the first is Arcella Vulgaris, but I do not know the IDs of the rest. My main question here is are Examples 3,4,5 and 6 testate amoebas ?

https://vimeo.com/356034299

Thanks,
Dan

mintakax
Posts: 174
Joined: Mon Jul 29, 2019 12:06 am
Location: Boulder CO, USA

Re: testate amoebas ?

#2 Post by mintakax » Sun Sep 01, 2019 1:40 am

mintakax wrote:Here is a short compilation of 6 creatures I have observed this week. I'm not sure if the last four are testate amoebas or not. I know the first is Arcella Vulgaris, but I do not know the IDs of the rest. My main question here is are Examples 3,4,5 and 6 testate amoebas ?

https://vimeo.com/356034299

Thanks,
Dan
Hmmm-- I guess I'll just assume that all of them are amoebas.

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75RR
Posts: 6261
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Location: Estepona

Re: testate amoebas ?

#3 Post by 75RR » Sun Sep 01, 2019 5:18 am

Had missed this post - that happens sometimes when another one is posted soon after.

You have been busy and your source is very productive.

Unfortunately I can't help much - nothing definitive. Even with Ferry's wonderful site it is quite difficult.

I would say yes with the possible exceptions of Nº 4 which I am not sure what it is (some movement would probably help) and Nº 6 which I suppose could be Heliozoa

Sorry not to be more helpful
Zeiss Standard WL (somewhat fashion challenged) & Wild M8
Olympus E-P2 (Micro Four Thirds Camera)

mintakax
Posts: 174
Joined: Mon Jul 29, 2019 12:06 am
Location: Boulder CO, USA

Re: testate amoebas ?

#4 Post by mintakax » Sun Sep 01, 2019 2:34 pm

75RR wrote:Had missed this post - that happens sometimes when another one is posted soon after.

You have been busy and your source is very productive.

Unfortunately I can't help much - nothing definitive. Even with Ferry's wonderful site it is quite difficult.

I would say yes with the possible exceptions of Nº 4 which I am not sure what it is (some movement would probably help) and Nº 6 which I suppose could be Heliozoa

Sorry not to be more helpful
Thank you 75RR !

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cuxlander
Posts: 105
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Re: testate amoebas ?

#5 Post by cuxlander » Tue Sep 03, 2019 5:00 pm

Hello mintakax,

some guesses:
1. An Arcella, size and side view would have helped
2. Probably a Difflugia or a Pontigulasia
3. A filose Amoeba
4. No idea, probably no Amoeba
5. Probably another small Arcella
6. Probably another filose Amoeba or as 75RR guessed a Heliozoa.

Cheers,
Hans

mintakax
Posts: 174
Joined: Mon Jul 29, 2019 12:06 am
Location: Boulder CO, USA

Re: testate amoebas ?

#6 Post by mintakax » Sat Sep 07, 2019 12:31 pm

cuxlander wrote:
Tue Sep 03, 2019 5:00 pm
Hello mintakax,

some guesses:
1. An Arcella, size and side view would have helped
2. Probably a Difflugia or a Pontigulasia
3. A filose Amoeba
4. No idea, probably no Amoeba
5. Probably another small Arcella
6. Probably another filose Amoeba or as 75RR guessed a Heliozoa.

Cheers,
Hans
Thank you Hans ! Finally this week I received a measuring reticle (which I have calibrated ) so in the future I can provide sizes. As for side view, is there a procedure for obtaining this ?

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cuxlander
Posts: 105
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Re: testate amoebas ?

#7 Post by cuxlander » Sat Sep 07, 2019 1:20 pm

Hello Mintakax,
As for side view, is there a procedure for obtaining this ?
No procedure! One tries to turn the object by tipping on the cover glass or pushing the glass to a side. If you are lucky the object rotates a bit and lets you view it from another angle. Convex slides are helpful.
Its 10% skill, 90 % luck :D

Cheers,
Hans

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75RR
Posts: 6261
Joined: Sun Oct 12, 2014 2:34 am
Location: Estepona

Re: testate amoebas ?

#8 Post by 75RR » Sat Sep 07, 2019 2:13 pm

cuxlander wrote:
Sat Sep 07, 2019 1:20 pm
Hello Mintakax,
As for side view, is there a procedure for obtaining this ?
No procedure! One tries to turn the object by tipping on the cover glass or pushing the glass to a side. If you are lucky the object rotates a bit and lets you view it from another angle. Convex slides are helpful.
Its 10% skill, 90 % luck :D

Cheers,
Hans
There are other ways of achieving a side view, but it takes a little more practice - first you need to train a worm ...

Zeiss Standard WL (somewhat fashion challenged) & Wild M8
Olympus E-P2 (Micro Four Thirds Camera)

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cuxlander
Posts: 105
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Re: testate amoebas ?

#9 Post by cuxlander » Sat Sep 07, 2019 3:48 pm

Hello 75RR,
first you need to train a worm ...
Can I borrow your worm?

Hans

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