MicrobeHunter.com Microscopy Forum

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

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

Thanks,

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

Hans

Hello, At first glance this 232 µm high specimen from bog water looks like a testate amoeba http://www.hans-rothauscher.de/testaceen/forum/unknown.jpg 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...

Thanks Essaouira,

I like the look-and-feel of Ubuntu. But as selection of software is so much limited and difficult to install I am happily back to Win10.

Greetings,
Hans

Hello,
has anyone managed to run this software in Ubuntu?
I cannot load this program at all.
Thanks,
Hans

Hello Chris, your specimen is about 120 µm high. Most pyriform difflugia are much bigger. One characteristic is the very regular bunch of "stones" around the aperture. Not typical for Zivkovicia/pontigulasia/, my first wild guess was probably wrong. As Ferry Siemensma wrote, "Identification [of Diff...

Hello Chris,
Scale bar 100 µm?
may be Zivkovicia spectabilis, look at 40-45 seconds for view into pseudostome.
compare https://www.arcella.nl/zivkovicia-spectabilis/
Cheers,
Hans

Hi Mike,
no, that's detritus or other rubbish.
The Arcella (conica?) is either encysted or empty.
Cheers,
Hans

Hello,
also try Virtualdub at http://www.virtualdub.org/index
Its free and quite powerful, quite a learning curve though.
Hans

Thanks 75RR,
for the comments and for the hint about the "edit" function.
Hans

correction

No shirt, a short video

Hello,

here's a shirt video of a collotheca rotifer:

[youtube]https://youtu.be/Z5ODaFgxOFM[/youtube]

Cheers,
Hans

Hi.
the second picture shows some colonial diatoms, don't know species.
Cheers,
Hans

Hello 75RR,

first you need to train a worm ...

Can I borrow your worm?

Hans

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% s...

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

Hello,

@norm

I found this guy in one of my overwatered plants the other day.

This is not a rotifer, probably Isotoma viridis.


Cheers,
Hans

Hello Michael, My imaging train is not sopisticated. Illumination is by a DYO-LED, my top lamp is an Ikea Sansjö . As you will probably know, the Zeiss KF2 has a fixed illumination and a basic diaphragm condensor, no koehlering. As cameraobjective the Amscope 14 mP CMOS Camera (MU1400) has got a Plö...

Cladophora ??

cheers,
Hans


PS Mougeotia is freshwater, the Baltic Sea is almost fresh in some areas.

Hello, This pretty foraminifera came from Red Sea beach sand. 25x Neofluar transmitted and reflected light. About 300 µm wide. Stacked with Picolay from 38 frames: http://www.hans-rothauscher.de/testaceen/forum/foram_last.jpg You will probably also like this version of the photo, greyscale, negative...

Hi Kurt,
I like them!
last year I already posted a few foram-photos, see
viewtopic.php?f=6&t=5818&sid=78292a1c74 ... 919dca8deb
Greetings,
Hans

Hi,
Tanks for your comments.

@75RR

What mounting medium did you use?

Just water.



Hans

Hello, The sand on Roatan-beach did not contain many forams. This is a stack of a 400 µm large specimen, taken with 25x Neofluar, transmitted and reflected (Sansjö-Lamp) light. The original fotos where quite dull and required quite some contrast and sharpness enhancement, negative, grayscaled. http:...

@MicroBob, Also interesting: The Universiy of Hamburg entertains a big algae collection. Some desmidacaes have been collected 50 years ago and are grown and cared for since then. I have a rather old water sample from spring with demids (M. rotata and Netrium) still healthy and multiplying, although ...

Hi jomaiz,
how long?
Hans

Hi jomaiz, I do not know what the third one is, though I find them quite often. Plant seed or insect egg?? Still I like them, here are my impressions: http://www.hans-rothauscher.de/testaceen/forum/fruehstuecksei.jpg softboiled egg (empty) http://www.hans-rothauscher.de/testaceen/forum/smiley.jpg Sm...

Hi Aenima,
the first one is a Centropyxis most probably aculeata.
Second one ?? I wonder if phase contrast is the right method for this kind of object?
The last one??
Cheers,
Hans

Hello RobBerdan,
impressive photos, although I love to see Volvox in its natural colours.
Cheers,
Hans

@75RR
definitely a foram,
see my posting viewtopic.php?f=6&t=5818
Cheers,
Hans