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which sigmoid diatom is this?

Posted: Wed Mar 06, 2024 11:01 pm
by Free2Fish
I've spent quite a bit of time searching the various diatom keys on the internet but haven't been able to come up with an ID for this sigmoid diatom. Any ideas out there?
Thanks, Harry

Image

Re: which sigmoid diatom is this?

Posted: Thu Mar 07, 2024 7:26 am
by WWWW
Hi,

Maybe lookup Nitzschia sigmoidea ?

Greetz,
WWWW

Re: which sigmoid diatom is this?

Posted: Thu Mar 07, 2024 11:58 am
by Free2Fish
Thanks WWWW, that certainly looks like it!
Harry

Re: which sigmoid diatom is this?

Posted: Thu Mar 14, 2024 5:38 pm
by Topcode
Not sure if i can help with ID, but that is an absolutely beautiful diatom.