Amoeboid of the month

 

Allogromia

This undescribed amoeboid is not rare in fresh water samples. You may find it after some days abundantly in wet mounts kept in a moisture chamber. This organism produces a rhizoid-like ectoplasmic network of branched, anastomosing, filaments. It's about 5 µm long. The bright sphere, here in phase contrast, is a lipid globule, comparable with those present in Diplohphrys, which is closely related. It belongs to the Labyrinthulomycetes, a group of fungi, mainly known as marine organisms, though I find them in almost every freshwater sample.

 

 

Phryganella acropodia

 

Hyalosphenia - Assulina - Arcella - Difflugia - Cyphoderia - Centropyxis - Nebela