Trinema complanatum
Trinema complanatum
Trinema complanatum

 

Trinema complanatum Penard, 1890

Diagnosis: shell broad elliptical, nearly rectangular with rounded corners; compressed, broad elliptical in transverse section. Shell composed of circular to broad elliptical platelets, hardly visible. Aperture normally broad elliptical, invaginated. Nucleus with a central nucleolus.

Dimensions: length 39-49 µm (Penard, 1902); 43-60 µm (Hoogenraad & De Groot, 1940)

Ecology: mosses, Sphagnum, aquatic vegetation, moistened soils.

Remarks: typical specimens are clear to distinguish from Trinema enchelys and Trinema lineare.

Trinema complanatum
Trinema complanatum
T. complanatum
Trinema complanatum
Sumatra
T. complanatum
Living specimen, the Netherlands
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