Awerintzewia cyclostoma, 156 µm

 

Genus Awerintzewia Schouteden, 1906

Diagnosis: Test ovoid with a dark violet color, laterally compressed with an oval aperture and an internally thickened border.

 

Awerintzewia cyclostoma Schouteden, 1906

 

Diagnosis: Test ovoid with a dark violet color, laterally compressed with an oval aperture and an internally thickened border.

Dimensions: 135-180 µm long; my measurements 156-181 µm.

Ecology: Sphagnum and peat bogs, forest soils. Rare.

Remarks: This species resembles at first sight Heleopera amethystea, but can be distinguished by its oval aperture, while Heleopera amethystea has a slit-like aperture.

 

Awerintzewia cyclostoma
Awerintzewia cyclostoma, oval aperture
Awerintzewia cyclostoma
Awerintzewia cyclostoma
Awerintzewia cyclostoma, 181 µm, Ecuador
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 »