
Difflugia venusta
Difflugia venusta (Penard, 1902)
Basionym: Difflugia pyriformis var. 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 (1902) doesn’t give any dimensions. My measurements: about 150 um.
Habitat: Freshwater. Aquatic plants, debris.
Remarks: Penard (1902) described this species as a characteristic variety of Difflugia pyriformis. His specimens always had zoochlorellae.


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