Euglenids exibiting metaboly and flagellum motility

Euglena

  One of the jars I had been sampling from all winter           became quite green. I took a fairly large sample from the mid jar water and included some bottom sediment and ran it through the centrifuge at 800 RPM for about ten minutes. Out of the resulting pellet came a significant number of algae, a large number of which were various species of euglenids.

 

 

 
 

Phacus

 

 

 

There are now reports of over 1500 species so identification for the layperson is almost impossible.

But I did find some interesting movement types of one particularly numerous species, probably from Family Peranemidae, showing both metaboly and flagellum motility.

 

 

 

Also an image of a similar group in darkfield.