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Rabdiophrys anulifera
Rabdiophrys anulifera, Spiegelplas, 2019

Genus Rabdiophrys Rainer, 1968

Diagnosis: Filose amoeba with hollow siliceous structures forming scales and spines. Cells covered with both plate- and spine-scales. Cell diameter 25-40 µm; the diameter of the plate-scales is 1.5-5.5 µm. The plate-scales consist of two layers, which are fused peripherally. elsewhere connected by intercalary material appearing as hexagonally arranged black dots. The proximal plate has many very minute perforations and the distal plate has 1-10 large pores or many minute perforations in the central area. The spine-scales are variable in structure and length (0.8-12.2 µm); they consist of a base plate with a hollow spine and species-specific structures on its apex. The cytoplasm has many large granules and there are very large food-vacuoles. The filopodia are very thin.
Type species: Rabdiophrys anulifera.

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