Shells with rounded fundus
This group has no taxonomic significance.
D. incondita, after Gauthier-Lièvre and
D. minuta var. minor, after Godeanu,
Difflugia mica anulata, from Schönborn,
Bag-shaped or asymmetrical shells (This
D. dragana, after Ogden and
Pyriform shells Pear-shaped shells. (This group