Overlapping markers can be separated by clicking on them.
Hovering the cursor over a marker will show the site's name.
Clicking on a marker will show information available about the collection site. (Compare with corresponding letter in table.)
north flat (Nordwatt), Helgoland Island, Germany
latitude: 54.200001
longitude: 7.895833
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
| Postaphanostoma glandulosum | Oct 1964 | Polygordius shell | ||
| Simplicomorpha viridis | Aug 1963; Aug 1964 | Polygordius shell | ||
| Archocelis macrorhabditis | Aug 1963; Aug 1964 | Polygordius shell | ||
| Mecynostomum haplovarium | Aug 1963 | Polygordius shell | museum specimen number: SMF 3371-83 / Polygordius |