Difflugia manicata
Difflugia manicata, test and nucleus – after Penard, 1902

Difflugia manicata  Penard, 1902

Diagnosis: Test ovoid, covered with neatly arranged mineral grains. A broad region (1/3 of the shell) of the anterior part of the shell is covered with much larger particles. Aperture small and circular. Nucleus with central compact nucleolus with small lacunae.

Dimensions: Length 60-88 µm, width 37-54 µm, apertural diameter 12-20 µm, nucleus 13 µm.

Ecology: Freshwater. In sediment. Switzerland.

Recent posts

Raphidocystis glabra

after Zlatogursky et al., 2018 Raphidocystis glabra Dürrschmidt, 1985 Diagnosis: Periplast 40-50 μm in diameter; spine-scales 4.6–15 μm; plate-scales 6-7 × 3-3.5 μm; tiny teeth

Read More »

Raphidocystidae

Raphidocystidae Zlatogursky, 2018 Diagnosis: centrohelids with monolayered plate-scales covering cell surface. Plate-scales with a hollow inflected margin. Sometimes trumpet-shaped or tubular spine-scales present, forming an

Read More »

Planhoogenraadia liboica

P. liboica – from Bonnet, 1979 Planhoogenraadia liboica Bonnet, 1979 Diagnosis: . Test relatively flat, with a dorsal convexity. Shell widest in the center. Aperture deep

Read More »

Deharvengia papuensis

Deharvengia papuensis, after Bonnet, 1979 Deharvengia papuensis  Bonnet, 1979 Diagnosis: Theca large, ovoid, very regular, colorless. Elliptical pseudostome bordered by a thick yellowish lip or

Read More »