Search found 477 matches

by janvangastel
Sun Jan 10, 2021 4:58 pm
Forum: Pictures and Videos
Topic: Testudinella Patina
Replies: 5
Views: 178

Re: Testudinella Patina

Very nice video. I have seen Testudinella a couple of times in my water samples, but did not succeed in making a video.
by janvangastel
Sat Jan 09, 2021 5:54 pm
Forum: Pictures and Videos
Topic: Holophrya?
Replies: 2
Views: 104

Re: Holophrya?

Thank you Bruce. Lots of reading necessary to keep up with all these changes I think.
by janvangastel
Sat Jan 09, 2021 8:49 am
Forum: Pictures and Videos
Topic: Ciliate frenzy.
Replies: 7
Views: 286

Re: Ciliate frenzy.

Very interesting video!
by janvangastel
Fri Jan 08, 2021 6:49 pm
Forum: Pictures and Videos
Topic: Holophrya?
Replies: 2
Views: 104

Holophrya?

I found this ciliate in my small pond. I think it's a Holophrya, because I see a food basket at the front, a CV at the rear side and central, a little to one side, a macronucleus. It has also some longitudinjal striping. Its length is about 60 microns.

by janvangastel
Tue Jan 05, 2021 8:36 am
Forum: Pictures and Videos
Topic: One more Chydorus ...
Replies: 4
Views: 265

Re: One more Chydorus ...

Beautifull!
by janvangastel
Sat Jan 02, 2021 3:46 pm
Forum: Pictures and Videos
Topic: Chilodonella
Replies: 9
Views: 310

Re: Chilodonella

Very intersting, sharp and detailed video.
by janvangastel
Fri Jan 01, 2021 11:01 am
Forum: Pictures and Videos
Topic: Squantinella
Replies: 0
Views: 144

Squantinella

I found this nice Rotifer in my small garden pond. I am reasonably sure it's a Squantinella (genus), but I don't know which species it is. It is about 180 microns long, including its toes.

by janvangastel
Sun Dec 27, 2020 2:47 pm
Forum: Pictures and Videos
Topic: Thecamoeba
Replies: 3
Views: 139

Re: Thecamoeba

Sharp and clear. Very nice!
by janvangastel
Sun Dec 27, 2020 6:57 am
Forum: Pictures and Videos
Topic: Stephanoceros fimbriatus ssp. millsii
Replies: 3
Views: 137

Re: Stephanoceros fimbriatus ssp. millsii

What a beautifull creature. And a nicely detailed photograph.
by janvangastel
Fri Dec 25, 2020 2:09 pm
Forum: Pictures and Videos
Topic: Can anyone identify this fellow?
Replies: 13
Views: 379

Re: Can anyone identify this fellow?

Here's a layout of cirri of hypotrichs. To see them it's usually necessary to defocus a little to either side of focus. I find that much easier to do with video then with photographs.
Hypotrich cirri layout.jpg
Hypotrich cirri layout.jpg (47.35 KiB) Viewed 239 times
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by janvangastel
Thu Dec 24, 2020 7:15 am
Forum: Pictures and Videos
Topic: Does anybody know what this is?
Replies: 2
Views: 127

Re: Does anybody know what this is?

It looks like some kind of Hypotrichia, but there's not enough information in the pictures (for me) to decide. A video would be better I think, because it makes more features visible.
by janvangastel
Wed Dec 23, 2020 10:28 am
Forum: Pictures and Videos
Topic: Urocentrum & Euchlanis
Replies: 5
Views: 185

Re: Urocentrum & Euchlanis

The first one looks like Urocentrum, but I have never seen one before, only pictures
The rotifer looks more like Colurella to me.
by janvangastel
Wed Dec 16, 2020 6:57 pm
Forum: Pictures and Videos
Topic: Long term observation of the rotifer Collotheca trilobata
Replies: 7
Views: 1057

Re: Long term observation of the rotifer Collotheca trilobata

Very interesting observations and very good quality pictures and time lapses. Thanks for sharing.
by janvangastel
Tue Dec 15, 2020 4:13 pm
Forum: Pictures and Videos
Topic: Halteria?
Replies: 5
Views: 561

Re: Halteria?

Thanks Bruce.If I find another one I will try to focus on the equatorials, if present.
by janvangastel
Tue Dec 15, 2020 8:44 am
Forum: Pictures and Videos
Topic: Halteria?
Replies: 5
Views: 561

Re: Halteria?

Bruce, I don't know what you mean by equatorial bristles, could you please explain? From about 1:02 to almost the end of the video I have zoomed in at the moving bristles. How would you name these bristles?
by janvangastel
Mon Dec 14, 2020 11:34 am
Forum: Pictures and Videos
Topic: Halteria?
Replies: 5
Views: 561

Halteria?

This ciliate is about 30 microns in diameter. I think it is a Halteria, but don't know which species it is.

by janvangastel
Mon Dec 14, 2020 8:29 am
Forum: Identification help
Topic: worm or ciliate?
Replies: 9
Views: 763

Re: worm or ciliate?

It could be Stichotricha I think. I once found one that looks about similar, but often the details are more important then the overall looks https://www.youtube.com/watch?v=LSmVq-sUhb4 .
by janvangastel
Sun Dec 13, 2020 2:18 pm
Forum: Pictures and Videos
Topic: Congratulations Mrs. Sporangium its a Zoospore
Replies: 8
Views: 810

Re: Congratulations Mrs. Sporangium its a Zoospore

What a very interesting video. I never saw this before.
by janvangastel
Sat Dec 12, 2020 7:49 am
Forum: Pictures and Videos
Topic: Daphania Stack test
Replies: 5
Views: 730

Re: Daphania Stack test

I don't know the answers, but the photographs are very nice. I think I'll also give it a try.
by janvangastel
Fri Dec 11, 2020 6:26 pm
Forum: Pictures and Videos
Topic: Coleps
Replies: 2
Views: 493

Re: Coleps

Thank you Bruce. I have seen lots of Coleps before and I always saw the 'blocked' armour, even at low maginfications. Impossible to not seeing it. In this sample however, I found two, the one shown in the video and another one, in which I could not see the armour. I don't know why. I still have more...
by janvangastel
Fri Dec 11, 2020 12:01 pm
Forum: Pictures and Videos
Topic: Coleps
Replies: 2
Views: 493

Coleps

I think this is a Coleps species. It has, as far as I can see, three thorns on the back side and 3 or four longer cilii. The pattern seen by other Coleps' is only visible sometimes, close to the edge of the ciliate.

by janvangastel
Thu Dec 10, 2020 10:17 am
Forum: Identification help
Topic: Can someone confirm my ID's
Replies: 4
Views: 539

Re: Can someone confirm my ID's

To me the second one looks more like a ciliate then a rotifer. But if it is a ciliate, I don't know the genus/species.
by janvangastel
Thu Dec 10, 2020 10:12 am
Forum: Pictures and Videos
Topic: Cephalodella catalina?
Replies: 2
Views: 420

Re: Cephalodella catalina?

Thank you for your clear comment Michael. I will change the name to Cephalodella only.
by janvangastel
Wed Dec 09, 2020 7:26 pm
Forum: Pictures and Videos
Topic: Cephalodella catalina?
Replies: 2
Views: 420

Cephalodella catalina?

I found this nice rotifer in my small pond. I think it could be C. catalina, because its feet are at 90° from its body. Please correct me if I am wrong.

by janvangastel
Tue Dec 01, 2020 4:21 pm
Forum: Pictures and Videos
Topic: Arcdella gibbosa?
Replies: 13
Views: 518

Re: Arcdella gibbosa?

Thanks for your comprehensive answer and the very nice pictures and video Bruce.
by janvangastel
Tue Dec 01, 2020 12:58 pm
Forum: Pictures and Videos
Topic: Arcdella gibbosa?
Replies: 13
Views: 518

Re: Arcdella gibbosa?

Thank you Chris.
by janvangastel
Tue Dec 01, 2020 7:44 am
Forum: Pictures and Videos
Topic: Arcdella gibbosa?
Replies: 13
Views: 518

Re: Arcdella gibbosa?

Bruce,
I see pictures of many orientations of the Arcella species you discovered. Did you manipulate the same species for all these observations or did you find many indiciduals? In the last case: how to know that it is the same species every time?
by janvangastel
Tue Dec 01, 2020 7:38 am
Forum: Pictures and Videos
Topic: Litonotus dividing
Replies: 5
Views: 270

Re: Litonotus dividing

Yes, I noticed that. I thought that maybe the 'breaking' of the last part of contact caused a kind of startle response.
by janvangastel
Mon Nov 30, 2020 7:44 pm
Forum: Pictures and Videos
Topic: Arcdella gibbosa?
Replies: 13
Views: 518

Re: Arcdella gibbosa?

OK, thank you.
by janvangastel
Mon Nov 30, 2020 7:42 pm
Forum: Pictures and Videos
Topic: Litonotus dividing
Replies: 5
Views: 270

Re: Litonotus dividing

Yes, when I was editing the video I was wondering if there was some known mechanism that makes them move together so smoothly.