What is this I wonder.
Have spent quite a few hours now looking through all my online PDF books and I cannot find a name for this little critter.
It moves damn quick and is very hard to image.
EDIT: It might be is a Metopus but it's not like the normal shaped ones I see, but then it does twist while it swims.
https://www.flickr.com/photos/154534235 ... datetaken/
https://www.flickr.com/photos/154534235 ... datetaken/
What is this I wonder...
What is this I wonder...
Leitz SM-Lux
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- Posts: 986
- Joined: Fri Sep 04, 2015 11:34 am
Re: What is this I wonder...
Caenomorpha. You must have some low-oxygen water, there.
Re: What is this I wonder...
Is it the same as this one as I've identified this i think to Caenomorpha medusula because of the posterior spine
https://www.flickr.com/photos/154534235 ... datetaken/
As far as the low oxygen water, these are from a 2 litre jar that I keep all my samples in, I do supply it with oxygen a few times a week via an air stone pump.
https://www.flickr.com/photos/154534235 ... datetaken/
As far as the low oxygen water, these are from a 2 litre jar that I keep all my samples in, I do supply it with oxygen a few times a week via an air stone pump.
Leitz SM-Lux
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- Posts: 986
- Joined: Fri Sep 04, 2015 11:34 am
Re: What is this I wonder...
To my mind, it looks different. The one you're calling C. medusula has a very long posterior spine under a bell-like hood, giving the whole thing a Medusa-like appearance. The other one has a more screw-like body, perhaps suggesting C. sapropelica. However, I wouldn't settle on a species until I'd reviewed all the literature (which I haven't done).
Caenomorpha is an anaerobe, so I guess there some pockets of low-oxygen water in your jar.
Caenomorpha is an anaerobe, so I guess there some pockets of low-oxygen water in your jar.