These shells were present in sediments of a ditch along the Bert Bospad in the central area of the Netherlands (2016).
a species of the pyriformis group (340-425 µm)
b species of the acuminata group (228-465 µm)
c Difflugia nodosa group (424 µm)
d Difflugia capreolata (260 µm)
e Difflugia curvicaulis (178-190 µm)