Oligochoerus limnophilus Ax & Doerjes, 1966 | Jun 7-12, 1971 | littoral | stone | stone embankments and stony shores of the littoral zone. The sixteen Netherlands lakes sampled by the authors are connected by canals, so it is difficult to indentify natural rivers. |
Dendrocoelum lacteum (Müller, 1773) | Jun 7-12, 1971 | littoral | rounded stones | South shore. Rounded. Vegetation, Phragmites, little detritus. 11-30 individuals per hour. |
Dendrocoelum lacteum (Müller, 1773) | Jun 7-12, 1971 | littoral | vegetation | South shore. Rounded. Vegetation, Phragmites, little detritus. 11-30 individuals per hour. |
Dugesia polychroa (Schmidt, 1861) | Jun 7-12, 1971 | littoral | vegetation | South shore. Rounded. Vegetation, Phragmites, little detritus. 1-10 individuals per hour. |
Dugesia polychroa (Schmidt, 1861) | Jun 7-12, 1971 | littoral | rounded stones | South shore. Rounded stones. Vegetation, Phragmites, little detritus. 1-10 individuals per hour. |
Polycelis tenuis Ijima, 1884 | Jun 7-12, 1971 | littoral | rounded stones | South shore. Rounded stones. Vegetation, Phragmites, little detritus. 31-100 individuals per hour. |
Polycelis tenuis Ijima, 1884 | Jun 7-12, 1971 | littoral | vegetation | South shore. Rounded stones. Vegetation, Phragmites, little detritus. 31-100 individuals per hour. |
Microstomum lineare (Müller, 1773) | Jun 7-12, 1971 | littoral | vegetation | South shore. Rounded stones. Vegetation, Phragmites, little detritus. 31-100 individuals per hour. |
Plagiostomum lemani Forel & Du Plessis, 1874 | Jun 7-12, 1971 | littoral | vegetation | South shore. Rounded stones. Vegetation, Phragmites, little detritus. 1-10 individuals per hour. |