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south (southern) harbor entrance, Helgoland Island, Germany
latitude: 54.179169
longitude: 7.8875
Precision of location: Gauged from chart or map
Site Named Here: By name of island, bay, strait, lake, river, or stream, etc., named in source publication
| Archactinoposthia pelophila | Jul 1964 | 8 m | mud | museum specimen number: SMF 3295-99 |
| Pelophila lutheri | Aug 1963 | 8 m | mud | museum specimen number: SMF 3307-3314; type locale selected for P. cavernosa |
| Pelophila cavernosa | Aug 1963 | 8 m | mud | museum specimen number: SMF 3307-3314 |