Brightfield.
Thanks.
Thanks, Jan.Bruce Taylor wrote: ↑Sun Apr 04, 2021 4:42 pmBeautful! As Jan says, it's not F. atra, which, in addition to having a pointed posterior, has very dark pigmentation. This is probably Frontonia angusta.
I've never seen anything like this before.Bruce Taylor wrote: ↑Mon Mar 29, 2021 4:52 pmGreat video! It's not cell division, but conjugation (mouth-to-mouth ciliate sex!).
These are haptorid ciliates (e.g. Enchelys, Paraenchelys, Enchelyodon, etc.).