Marine Heliozoan ??

[75RR]

Planapo 63x/1.4, DIC, 12µm body, Mediterranean sea

[Hobbyst46]

A nice catch. Was it the kinetic cysts moving in the last few seconds? at about 2 o'clock (when the organism is the clock?)

[75RR]

Do you mean the small beads on the axopods?
There was not a great deal of movement but there was a little.
I believe at around the 30sec mark at 2 o'clock one can be seen moving away from the main body.

Here is a shorter video showing this movement just a little more clearly.

[vasselle]

Bonjour
Très belle vidéo

[ImperatorRex]

Hi 75,
interesting video. Does Heliozoan typcially move? Or is this something special you have observed here? I am asking because I do not know much about the Heliozoans. Was there a lot of water thickness below the cover glas? Maybe some pumping caused by oil immerion when the water layer is too thick?

[75RR]

Hi ImperatorRex, they are amoebae and as such yes they do move about (slowly). They use their axopodia much like a sea-urchin uses its spines to move.
One does have to be careful when using oil, particularly with (ridiculously) small working distances - I think I avoided that in this case.

See link for a little more info on heliozoa
http://www.microscopy-uk.org.uk/mag/ind ... ctino.html