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

 

Recent posts

Ditrema spec.

Ditrema spec. Ditrema spec. Diagnosis: Shell as with D. longicollis, but much smaller, surrounded by V-shaped structures that gave it the impression of a star.

Read More »

Rotosphaerida

Pompholyxophrys Pompholyxophrys Pompholyxophrys Rabdiophrys Rotosphaerida Rainer, 1968 Diagnosis: Aciliate predominantly spherical or flattened amoebae from which elongated actin-based filopodia extend; with flat discoid mitochondrial cristae;

Read More »

Centropyxis tabel

Key to Centropyxis species 1 Test in dorsal view circular or almost circular 2 – Test in dorsal view irregular due to various outgrows and

Read More »