Search found 101 matches
- Wed Apr 10, 2024 12:06 pm
- Forum: Identification help
- Topic: A fungal hypha attacking and sticking Holophrya?
- Replies: 4
- Views: 1484
Re: A fungal hypha attacking and sticking Holophrya?
Thank you very much for the reference and the link!
- Mon Apr 08, 2024 7:23 am
- Forum: Identification help
- Topic: A fungal hypha attacking and sticking Holophrya?
- Replies: 4
- Views: 1484
Re: A fungal hypha attacking and sticking Holophrya?
Thank you, Bruce, in the right direction again! Dr. Michael Plewka has kindly pointed me to a reference in the great work by Foissner, Berger & Kohmann: "Taxonomische und Ökologische Revision der Ciliaten des Saprobiensystems – Band III: Hymenostomata, Prostomatida, Nassulida." On page 338 it reads ...
- Fri Apr 05, 2024 6:53 am
- Forum: Identification help
- Topic: Dwarf forms of Stentor: How do they originate?
- Replies: 3
- Views: 583
Re: Dwarf forms of Stentor: How do they originate?
Thank you once more for the info, Bruce. Although all my samples with Stentor are fresh water ones (large puddles, ponds, river backwaters, reservoirs) I will be on the lookout for a possible encounter with Condylostomides . Concerning Stentor multiformis , I have never found it. Although I have som...
- Thu Apr 04, 2024 7:05 am
- Forum: Identification help
- Topic: A fungal hypha attacking and sticking Holophrya?
- Replies: 4
- Views: 1484
A fungal hypha attacking and sticking Holophrya?
Hi everyone in the microworld! Yesterday I stumbled upon another interesting phenomenon. In the attached video you can see an individual of Holophrya (perhaps H. teres ) attached to the substrate by a filament. Holophrya apparently struggles to escape (or simply continue on its way) several times, u...
- Wed Apr 03, 2024 3:34 pm
- Forum: Identification help
- Topic: Dwarf forms of Stentor: How do they originate?
- Replies: 3
- Views: 583
Dwarf forms of Stentor: How do they originate?
I often find dwarf forms of the genus Stentor in my samples. Although they do not have the size or shape typical of each species, they are easy to recognize thanks to the AZM and the paroral membrane, as well as the color (the color in Stentor coeruleus and Stentor igneus is typical). You can see an...
- Fri Mar 29, 2024 1:18 pm
- Forum: Identification help
- Topic: FOUND IN ACQUARIUM WATER
- Replies: 3
- Views: 824
Re: FOUND IN ACQUARIUM WATER
It is certainly a Peritrich Ciliate in its loriga, perhaps Cothurnia annulata.
- Mon Mar 18, 2024 12:43 pm
- Forum: Identification help
- Topic: A monster... of one kind or another
- Replies: 2
- Views: 994
Re: A monster... of one kind or another
No moss, just plant debris blown by the wind and some aquatic vegetation. In fact, I searched the sample intensively, but no similar individuals appeared, only some P. bursaria (but no Bryometopus).
I will try and take new samples from the same place as soon as possible. Thanks, Bruce!
I will try and take new samples from the same place as soon as possible. Thanks, Bruce!
- Mon Mar 18, 2024 9:43 am
- Forum: Identification help
- Topic: A monster... of one kind or another
- Replies: 2
- Views: 994
A monster... of one kind or another
This organism appeared a few days ago in a sample from the banks of a reservoir. Since I did not see any more similar individuals, I assumed that it could be a mutant individual of Paramecium bursaria , a frequent (but not abundant) species lately. However, looking at the video more closely I now th...
- Thu Mar 14, 2024 12:56 pm
- Forum: Identification help
- Topic: A new BIG critter (maybe Climacostomum?)
- Replies: 7
- Views: 1594
Re: A new BIG critter (maybe Climacostomum?)
Wow! Right on target!
Thank you very much!
Thank you very much!
- Thu Mar 14, 2024 8:40 am
- Forum: Identification help
- Topic: A new BIG critter (maybe Climacostomum?)
- Replies: 7
- Views: 1594
Re: A new BIG critter (maybe Climacostomum?)
Here you are a new critter with a high resemblance to others we have talked about in previous posts.
Perhaps Bursaridium. Anyway, I have not met neither Bursaridium nor this one before.
Thank you for any help.
Perhaps Bursaridium. Anyway, I have not met neither Bursaridium nor this one before.
Thank you for any help.
- Sat Mar 09, 2024 1:33 pm
- Forum: Identification help
- Topic: Hmmm...what can this be?
- Replies: 7
- Views: 1355
Re: Hmmm...what can this be?
It seems to be a telotroch form of some Peritrich ciliate.
- Thu Feb 29, 2024 2:13 pm
- Forum: Identification help
- Topic: Mystery Ciliate (to me, anyway!)
- Replies: 3
- Views: 1173
Re: Mystery Ciliate (to me, anyway!)
It looks to me like a mutant or deformed Hypotrich, IMHO.
I have sometimes found entire populations of Hypotrichs with various mutations (a real monsters parade!). The samples came from ponds where pesticide discharges.
Let's wait for the opinion of the experts.
I have sometimes found entire populations of Hypotrichs with various mutations (a real monsters parade!). The samples came from ponds where pesticide discharges.
Let's wait for the opinion of the experts.
- Mon Feb 19, 2024 6:52 pm
- Forum: Identification help
- Topic: Hypotrich and cyst
- Replies: 4
- Views: 1375
Re: Hypotrich and cyst
This is great, thank you for so much information!
I do not have any institutional access to commercial scientific journals, but I will try to access through the "back door" of free versions (ResearchGate, etc).
I do not have any institutional access to commercial scientific journals, but I will try to access through the "back door" of free versions (ResearchGate, etc).
- Sun Feb 18, 2024 4:25 pm
- Forum: Identification help
- Topic: Hypotrich and cyst
- Replies: 4
- Views: 1375
Re: Hypotrich and cyst
Glad you liked it, Bruce! Your video is quite illustrative. Yours and mine, both critters seem to be the same so I stick to Stylonychia sp. I assume it is a resting cyst, not a reproductive one.
Do you happen to have some information about Hypotrichia and their cysts?
Thank you very much!
Do you happen to have some information about Hypotrichia and their cysts?
Thank you very much!
- Sat Feb 17, 2024 8:26 pm
- Forum: Identification help
- Topic: Hypotrich and cyst
- Replies: 4
- Views: 1375
Hypotrich and cyst
Here is a freshwater (from a lithotelma) Hypotrich Ciliate going round and round inside its cyst and finally escaping from it. This is my first time with such a critter. I had no idea about cysts in Hypotrichia.
Any idea about ID? Thank you!
Any idea about ID? Thank you!
- Tue Feb 06, 2024 8:28 pm
- Forum: Identification help
- Topic: A new BIG critter (maybe Climacostomum?)
- Replies: 7
- Views: 1594
Re: A new BIG critter (maybe Climacostomum?)
You are right, my critter could be Condylostomides (a genus I did not know). But I have to do some Google research about Bursaria.
Too bad that my unknown critter has not shown up in later samples!
Thank you very much indeed.
Too bad that my unknown critter has not shown up in later samples!
Thank you very much indeed.
- Tue Jan 30, 2024 6:41 pm
- Forum: Identification help
- Topic: A new BIG critter (maybe Climacostomum?)
- Replies: 7
- Views: 1594
Re: A new BIG critter (maybe Climacostomum?)
I am sorry I have to disagree this time, Bruce. It doesn't look to me like Stentor at all. There is no Stentor in the samples I have extracted from that site (some cow footprints, by the way!). I have seen many Stentor specimens in recent months and I know how they contract and change shape (beautif...
- Tue Jan 30, 2024 10:59 am
- Forum: Identification help
- Topic: A new BIG critter (maybe Climacostomum?)
- Replies: 7
- Views: 1594
A new BIG critter (maybe Climacostomum?)
I have been shifting from one species to another and beyond, to no avail. This critter is big, but to my understanding not as big as Bursaria truncatella , an organism I have observed many times. As size does matter, I have ruled out Bursaria even though it has a vermiform nucleus, like my critter. ...
- Wed Jan 24, 2024 5:31 pm
- Forum: Identification help
- Topic: A new Hypotrich to ID
- Replies: 2
- Views: 1061
Re: A new Hypotrich to ID
Well, as far as we can go for now, problem solved (or this what I might think! ).
Thank You very much once again, Bruce!
Thank You very much once again, Bruce!
- Wed Jan 24, 2024 9:30 am
- Forum: Identification help
- Topic: A new Hypotrich to ID
- Replies: 2
- Views: 1061
A new Hypotrich to ID
Here again searching help to ID a new freshwater critter.
Since its features are clear, it should be easy to ID, but I do confess that I still haven't become used to this difficult group.
Thank you everyone for any hint.
Since its features are clear, it should be easy to ID, but I do confess that I still haven't become used to this difficult group.
Thank you everyone for any hint.
- Thu Dec 21, 2023 3:17 pm
- Forum: Identification help
- Topic: Green algae ID
- Replies: 3
- Views: 2016
Re: Green algae ID
And who is not lost in this microworld?
- Wed Dec 20, 2023 6:53 pm
- Forum: Identification help
- Topic: Green algae ID
- Replies: 3
- Views: 2016
- Tue Dec 19, 2023 7:22 pm
- Forum: Identification help
- Topic: Which Spathidium is this with a "head" so big?
- Replies: 4
- Views: 2323
Re: Which Spathidium is this with a "head" so big?
Once again I have to thank you, Bruce. Not only for your kindness and skill, but for forgiving me for the use of the dark field while I attempt to accurately determine a critter. Shame on me. :oops: I stick to S. amphoriforme complex. On the basis of the cell shape, I think it's likely to be a speci...
- Tue Dec 19, 2023 7:43 am
- Forum: Identification help
- Topic: Which Spathidium is this with a "head" so big?
- Replies: 4
- Views: 2323
Re: Which Spathidium is this with a "head" so big?
I am glad you liked it! This my everyday setup (for now): Microscope: OMAX - M837ZL-C180U3 https://shorturl.at/hBKLN Objectives: 4x, 10x and 40x from the pack, and 60x objective (dry) (model AmScope A60). Eyepiece: 10x from the pack inserted in the photographic tube. Smartphone to eyepiece adapter. ...
- Mon Dec 18, 2023 8:54 pm
- Forum: Identification help
- Topic: Which Spathidium is this with a "head" so big?
- Replies: 4
- Views: 2323
Which Spathidium is this with a "head" so big?
I'm sorry to say that I have given up after searching for this critter in Kahl's work and in Foissner's Monograph on the Spathidiida. Perhaps amphoriforme?
From wet moss (maybe muscorum?)
Any help heartily welcome!
From wet moss (maybe muscorum?)
Any help heartily welcome!
- Thu Dec 14, 2023 8:15 pm
- Forum: Identification help
- Topic: new unknown ciliate to us, any guesses?
- Replies: 1
- Views: 1583
Re: new unknown ciliate to us, any guesses?
A scale would be useful. Maybe Askenasia?
- Mon Dec 11, 2023 8:51 am
- Forum: Identification help
- Topic: Is this Paramecium multimicronucleatum?
- Replies: 6
- Views: 3499
Re: Is this Paramecium multimicronucleatum?
Thanks Bruce, I've read the article you attached and as far as I understand, it looks like my critters are real Paramecium bursaria. That's a great relief!
- Thu Dec 07, 2023 1:55 pm
- Forum: Identification help
- Topic: Is this Paramecium multimicronucleatum?
- Replies: 6
- Views: 3499
Re: Is this Paramecium multimicronucleatum?
Wow, Bruce! Let me thank you with all my heart for this new Protozoology lesson (including the valuable references). By the way, the first link appears incomplete (it may be too long), it should be this: Paramecium genus: biodiversity, some morphological features and the key to the main morphospecie...
- Wed Nov 29, 2023 9:55 am
- Forum: Identification help
- Topic: Is this Paramecium multimicronucleatum?
- Replies: 6
- Views: 3499
Is this Paramecium multimicronucleatum?
Hello everybody! I have to apologize once again for uploading a dark field video, I know that it is difficult to determine the characteristics of protozoa with this method. The critter in this video is a little hard to identify for me (although by now I am supposed to know several species of paramec...
- Tue Aug 29, 2023 9:59 pm
- Forum: Identification help
- Topic: Is this Vasicola ciliata out of the loriga?
- Replies: 1
- Views: 15871
Is this Vasicola ciliata out of the loriga?
If so, it is my first time with this critter:
From a freshwater sample from an ephemeral pond. You can read that this ciliate is conspicuous because of the colored food vacuoles filled with Rhodobacteria. But my critter has few purple vacuoles.
Any help welcome! Thank you everybody.
From a freshwater sample from an ephemeral pond. You can read that this ciliate is conspicuous because of the colored food vacuoles filled with Rhodobacteria. But my critter has few purple vacuoles.
Any help welcome! Thank you everybody.