Difflugia submarina  (Chardez, 1971) Chardez & Thomas, 1980
Basionym: Difflugia subterranean f. circularis Chardez, 1971

Diagnosis: Shell finger or club-shaped, in cross-section circular. This species resembles D. lanceolate and D. linearis, but is much smaller.

Dimensions: Chardez and Thomas (1980): Shell length 50-60 µm.

Habitat: Marine. Sandy beaches, Atlantic coast, France.

References: Chardez, D., Thomas, R., 1980. Thecamoebiens du Mesoosammon des Plages de Lacanau et Leporge-Ocean (Gironde, France) (Protozoa, Rhizopoda testacea. Acta Protozool., 19:3, 277-285.