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.
Recent posts

Difflugia ampla

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Difflugia parva

Difflugia parva, from Gauthier-Lièvre et Thomas, 1958 Difflugia parva  (Thomas, 1954) Ogden, 1983 = Difflugia oblonga var. parva Thomas, 1954 Diagnosis: Test pyriform, tapering evenly from

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