Loxophyllum or Litonotus ?

Jacek · Post by **Jacek** » Fri Nov 16, 2012 1:16 pm

Loxophyllum or Litonotus ? Please identify

the black-and-white photos I add colorful Daphnia

Litonotus · Post by **Litonotus** » Fri Nov 16, 2012 2:02 pm

those are images of a great quality (:

what species of Daphnia is that?

jc maccagno · Post by **jc maccagno** » Fri Nov 16, 2012 4:02 pm

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 · Post by **olivier barth** » Sat Nov 17, 2012 12:20 am

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

arturoag75 · Post by **arturoag75** » Sat Nov 17, 2012 12:52 am

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

Jacek · Post by **Jacek** » Sat Nov 17, 2012 4:14 am

I do not know what a species Daphnia.

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

RogelioMoreno · Post by **RogelioMoreno** » Sat Nov 17, 2012 5:36 am

Jacek,

Very nice, specially the last one.

Rogelio

Bruce Taylor · Post by **Bruce Taylor** » Sat Nov 17, 2012 11:27 am

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 · Post by **Jacek** » Sat Nov 17, 2012 11:38 am

Thank you for your comments.

I do not know if it will help ?

Bruce Taylor · Post by **Bruce Taylor** » Sat Nov 17, 2012 5:32 pm

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 · Post by **Jacek** » Sat Nov 17, 2012 10:54 pm

Bruce thank you, you have a great knowledge

Bruce Taylor · Post by **Bruce Taylor** » Sun Nov 18, 2012 6:52 am

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

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 · Post by **Jacek** » Sun Nov 18, 2012 7:35 am

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

Bruce Taylor · Post by **Bruce Taylor** » Sun Nov 18, 2012 3:19 pm

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 · Post by **Jacek** » Sun Nov 18, 2012 11:48 pm

Bruce thank you very much

Loxophyllum or Litonotus ?

Loxophyllum or Litonotus ?

Litonotus or Loxophyllum