Pinaciophora fluviatilis
Pinaciophora fluviatilis, pores visible – fountain of the royal palace het Loo, the Netherlands

Genus Pinaciophora Greeff, 1873

Diagnosis: Cells globose to ovoid, covered with a layer of overlapping circular or oblong plate-scales. The cell diameter is variable (14-80 µm); the diameter of the scales is 3-6 µm. The plate-scales consist of 2 layers fused peripherally, elsewhere connected by intercalary material appearing as hexagonally arranged black dots. The proximal plate is perforated by many very minute pores and the distal plate is perforated by 4-24 large pores. The cytoplasm is colourless or reddishbrown. The fïlopodia are small and thin.
Type-species: Pinaciophora fluviatilis.

Pinaciophora fluviatilis
Pinaciophora fluviatilis, plate scales – Photomicrograph Eckhard Voelcker
Recent posts

Difflugia bicruris

Difflugia bicruris, after Gauthier-Lièvre et Thomas, 1958 Difflugia bicruris  Gauthier-Lièvre et Thomas, 1958 Diagnosis: Test elongate ovoid, in cross section circular, with almost parallel sides;

Read More »

Difflugia congolensis

Difflugia congolensis, after Gauthier-Lièvre et Thomas, 1958 Difflugia congolensis  Gauthier-Lièvre et Thomas, 1958 Diagnosis: Test elongate pyriform, acuminate, with a spine of variable size and

Read More »

Difflugia key ovoid

Difflugia Ovoid Group Key characters: Test ovoid, in cross section rounded. Pseudostome circular. 1 Test with collar or short neck 2 1′ Test without collar

Read More »