Difflugia venusta

 

 

Difflugia venusta

 

Difflugia venusta (Penard, 1902)

 

Diagnosis: shell outline smooth, pyriform, with an elongated neck, sharply pointed in the aboral region; shell composed of small to large pieces of flat quartz, plus occasional diatoms.

 

Dimensions: Penard gives no dimensions. My measurements c. 150 um.

 

Ecology: waterplants, debris.

 

Remarks: Penard describes this species as a characteristic variety of Difflugia pyriformis. His specimens always had zoochlorellae.

 

Difflugia venusta

 

Difflugia venusta
This is the only drawing made by Penard (1902) of Difflugia venusta.
 
Difflugia venusta