Rotifer ID please

[75RR]

Made a video of this rotifer (these are screen shots) would like to add the Genus to the video. Thanks

[JimT]

Can't help but good images.

[zzffnn]

Great image! 20x objective? What NA? Was this done using universal gradient filter or plain oblique/COL? Thank you!

[75RR]

Thanks JimT and zzffnn

20x objective? What NA? Was this done using universal gradient filter or plain oblique/COL?

First two are with a 16x/0,35 Plan and the second two with a 25x/0,60 Ph2. I offset the brightfield port in the Phase Condenser to obtain the Oblique.

Still hoping for an ID!

[gekko]

Can't help either, but very good images.

[billbillt]

I looked through online pages for ID, but to no avail...
BillT

[billbillt]

I thought this feature would ID it, but no luck for me...

[Seb28]

Nice images,perhaps Philodina tranquilla.,but Im not sure.

[75RR]

Many thanks for the comments.
Have not quite found a match as yet.

Update:
Have found something similar: Philodina citrina, only I did not notice at any point two retractile "trochal discs" as seen in the first few images in the link.
See last 3 images (8, 9 and 10).
Is it a subspecies, feeding variation or just the viewing angle? Thanks

http://www.plingfactory.de/Science/Atla ... trina.html

[vasselle]

Bonjour
Very nice photos
Cordialement seb