Actinosphaerium

[Charles Krebs]

These are large heliozoans that are present in a sample I took from a local pond a couple days ago. This sample also contained many trachelomonas, and they were obviously a major food source for the Actinosphaerium right now.

In the first two images you can see many trachelomonas in vacuoles.

The last shot was a small Parmecium bursaria that got a little too close and is in the process of being enclosed and pulled toward the center (along with several trachelomonas).


Olympus BHS. Olympus 10/0.40 S Plan Apo. Olympus NFK 1.67x photoeyepiece. Darkfield illumination with electronic flash. Canon 50D.


Olympus BHS. Olympus 20/0.70 S Plan Apo. Olympus NFK 1.67x photoeyepiece. DIC illumination with electronic flash. Canon 50D.


Olympus BHS. Olympus 20/0.70 S Plan Apo. Olympus NFK 1.67x photoeyepiece. Circular oblique illumination with electronic flash. Canon 50D.


Olympus BHS. Olympus 20/0.70 S Plan Apo. Olympus NFK 1.67x photoeyepiece. DIC illumination with electronic flash. Canon 50D.


Olympus BHS. Olympus 20/0.80 D Plan Apo. Olympus NFK 1.67x photoeyepiece. DIC illumination with electronic flash. Canon 50D.


Olympus BHS. Olympus 60/1.40 S Plan Apo. Olympus NFK 1.67x photoeyepiece. DIC illumination with electronic flash. Canon 50D.

[pierre]

So beautiful !

Thanks for the share Charles

[Ecki]

Very nice shots. I love the first and the fourth one!

Ferry will be in heaven

[Wim van Egmond]

Beautiful photographs of a marvelous organism!

Wim

[arturoag75]

Superb shots Charlie!
Best
arturo

[Ferry]

Very beautiful! A real sun animal!
@Ecki: haha, I'm still sitting on the always surprising good old earth

[Marek Mis]

Charles,

Beautiful pictures !!

Marek Mis
Suwalki, Poland