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De Leijen Lake, Netherlands (Holland)
latitude: 53.150002
longitude: 6.066667
Precision of location: Alexandria Digital Library (with NGA GNDB data)
Site Named Here: By name of island, bay, strait, lake, river, or stream, etc., named in source publication
| Oligochoerus limnophilus | 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 | Jun 7-12, 1971 | littoral | Bricks, rough stones | North shore. Bricks, rough stones. Vegetation, Phragmites, little detritus. 31-100 individuals per hour. |
| Dendrocoelum lacteum | Jun 7-12, 1971 | littoral | Vegetation | North shore. Bricks, rough stones. Vegetation, Phragmites, little detritus. 1-10 individuals per hour. |
| Dugesia polychroa | Jun 7-12, 1971 | littoral | Vegetation | North shore. Bricks, rough stones. Vegetation, Phragmites, little detritus. 1-10 individuals per hour. |
| Dugesia polychroa | Jun 7-12, 1971 | littoral | Bricks, rough stones | North shore. Bricks, rough stones. Vegetation, Phragmites, little detritus. 101-300 individuals per hour. |
| Dugesia tigrina | Jun 7-12, 1971 | littoral | Bricks, rough stones | North shore. Bricks, rough stones. Vegetation, Phragmites, little detritus. 11-30 individuals per hour. |
| Polycelis tenuis | Jun 7-12, 1971 | littoral | Bricks, rough stones | North shore. Bricks, rough stones. Vegetation, Phragmites, little detritus. 1-10 individuals per hour. |
| Polycelis tenuis | Jun 7-12, 1971 | littoral | Vegetation | North shore. Bricks, rough stones. Vegetation, Phragmites, little detritus. 31-100 individuals per hour. |
| Microstomum lineare | Jun 7-12, 1971 | littoral | Bricks, rough stones | North shore. Bricks, rough stones. Vegetation, Phragmites, little detritus. 1-10 individuals per hour. |
| Plagiostomum lemani | Jun 7-12, 1971 | littoral | Bricks, rough stones | North shore. Bricks, rough stones. Vegetation, Phragmites, little detritus. 1-10 individuals per hour. |