ID help please for green protist

[Bschnitzer]

Red eyespot usually points to Euglenoid, but I couldn't spot any flagella. Also, anterior end is rounded.

Thanks

0009 400x green flat protist small.jpg (31.24 KiB) Viewed 1116 times

[WWWW]

I think it is a Euglena, the flagelum is not always visible.
There are many species some with som without pointed back.
There is als Lepocinclis whis resembles Euglene very much.

[Bschnitzer]

Thanks, 4w. I’m agreeing with you on likely Euglena species with fine or missing flagella and one extra large economy size chloroplast. Btw, it’s motion was not like euglena I have seen where the flagella is used to whip/pull the body along. Instead, it just did a slow motion writhing and stretching.

[WWWW]

Yes sometimes they act like an amoeba.
The red eye spot, the nucleus and a paramylum-bar are visible. (I think)

[Bschnitzer]

Ah yes, thanks for the correction on paramylum bar.

[Bschnitzer]

Based only on species images on the internet, E. gracilis is the closest match I can find for now.