Loxophyllum or Litonotus ?

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Jacek
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Loxophyllum or Litonotus ?

Post by Jacek »

Loxophyllum or Litonotus ? Please identify

the black-and-white photos I add colorful Daphnia

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Litonotus
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Post by Litonotus »

those are images of a great quality (:

what species of Daphnia is that?

jc maccagno
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Litonotus or Loxophyllum

Post by jc maccagno »

I think that this specimen is a Litonotus. A Loxophyllum has a series of wart like extrusions along its inside edge. As well it has a number of macro nuclei that are inter connected and look like a row of beads


Nice photos

John

olivier barth
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Post by olivier barth »

Hi,
I thinks it's not Litonotus.
Litonotus have always 2 nuclei.

arturoag75
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Post by arturoag75 »

very nice shots, but i think it's not a Lionotus :wink:

Jacek
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Post by Jacek »

I do not know what a species Daphnia.

Ciliates frequently occurs on the surface of rotting and stinking water.

RogelioMoreno
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Post by RogelioMoreno »

Jacek,

Very nice, specially the last one.

Rogelio

Bruce Taylor
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Post by Bruce Taylor »

Puzzling ciliate! Do you have any more pictures...especially of the mouth? A clear view of the ciliation might help, too.

Loxophyllum is not always warty, but should have a flat, hyaline border on the ventral side, lined with trichocysts, often strongly striated. My references show only know of one uninucleate type, and it doesn't resemble this guy...

Jacek
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Post by Jacek »

Thank you for your comments.

I do not know if it will help ?

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Bruce Taylor
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Post by Bruce Taylor »

Ah, two nuclei...which makes the Pleurostomatida (Amphileptidae, Litonotidae) possible...

Because of the vacuoles, probably an Amphileptid. See, for instance, Apoamphileptus claparedii (previously known as Amphileptus claparedii).

Jacek
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Post by Jacek »

Bruce thank you, you have a great knowledge :shock:

Bruce Taylor
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Post by Bruce Taylor »

I hope to have great knowledge, one day. In the meantime, I do have a lot of interest & enthusiasm. :D

Anyway, my suggestion is tentative. For one thing, you haven't told us the size. ;) And, to properly differentiate Litotonotidae (Litonotus, Loxophyllum) from Amphileptidae, you need to see the somatic ciliation. On Amphileptids, the kineties converge at each end. In Litonotids they run into the mouth slit, along one side of the "proboscis."

Curious, though...were there colonial peritrichs in the vicinity of your creature?

Jacek
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Post by Jacek »

I watched the pictures on the internet and your diagnosis is correct.
The surface is dominated by two species

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Bruce Taylor
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Post by Bruce Taylor »

Ah, that's interesting. Apoamphileptus claparedii is described as "a facultative parasite of colonial peritrichs" (Lin and Song, 2004). That is, it can live independently, but also parasitizes peritrichs when the opportunity arises. So, your organism is keeping the right company. ;)

The bottom picture appears to be a Pseudovorticella of some kind...I'm not sure about the other one.

Jacek
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Post by Jacek »

Bruce thank you very much :D

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