I found this species in a small lake near Lolo Pass, Montana – Idaho, USA. It multiplied easily in wet chamber mounts.

Cryptodifflugia
Cryptodifflugia
Cryptodifflugia spec. 16.5 and 15.5 µm, mouth 2.78 µm
Cryptodifflugia
Cryptodifflugia
Cryptodifflugia
Cryptodifflugia
Cryptodifflugia
Cryptodifflugia
Cryptodifflugia
Cryptodifflugia
Cryptodifflugia
Cryptodifflugia
Cryptodifflugia
In older wet chamber preparations a large number of these coupled shells appeared, one empty, the other with a cell, maybe encysted.
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