Cyclopyxis algaephila Decloitre, 1986
Diagnosis: ventral side with a large pseudostome, surrounded by mineral platelets which are at the outer edge very light and very difficult to see and at the inner edge very dark. All surrounded by irregularly shaped, not very dark mineral grains. The dorsal side has large, light, transparent platelets surrounded by a dark border with no distinct mineral grains.
Dimensions: Diameter 90 µm; height 30 µm; pseudostome 60 µm.
Ecology: In deposits of rotting brown algae on the beach. Atlantic coast, in the Var, France.