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north harbor (Nordhafen), Helgoland Island, Germany
latitude: 54.200001
longitude: 7.883333
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
| Nemertoderma bathycola | May 1963 | 32-33 m | coarse sand | |
| Haplogonaria simplex | May, Aug 1963 | 32-33 m | coarse sand | Museum specimen number: SMF 3167-73 |
| Haplotestis curvitubus | May 1963 | 32-33 m | coarse sand | museum specimen number: SMF 3224 |
| Philactinoposthia helgolandica | Jul 1964 | 32-33 m | coarse sand | museum specimen number: SMF 3331-34 |