This location is an large ditch in the nature reserve Naardermeer, in the southern part. My samples came from floating debris in springtime and bottom sediments. The exact location is: GPS 52.28133, 5.11887 (see arrow). The site is located in the centre of the Netherlands.

Remarkable species in this ditch:

• Metachaos spec.
• Difflugia nodosa
• Difflugia bidens
• Difflugia capreolata
• Difflugia giganteacuminata
• Difflugia longum
• Difflugia curvicaulis
• Difflugia microclaviformis
• Centropyxis marsupiformis
• Paramphitrema lemanense
• Clathrella foreli