Pseudocorythion acutum
Pseudocorythion acutum from Golemansky, 1986

 

 

Pseudocorythion acutum (Wailes, 1927)

 

Diagnosis: Test small, colorless, elliptical, slightly flattened dorso-ventrally; fundus terminating in a short spine, aperture large, circular, everted, opening ventrally; test formed of circular or sub-circular plates, arranged more or less regularly in diagonal rows; animal not observed.

 

Dimensions: Length 50-55 µm; breadth about 23 µm; thickness 20 µm; aperture 16 µm in diameter; spine 5 µm in length; plates of test 3 µm in diameter and 1.5 µm in thickness.

 

Ecology: Marine. On the sea beach, Camp Island, British Columbia.

 

Remarks: Although found on the sea shore, it is in all probability  a freshwater or moss inhabiting species.