Tonne Dune (Duene) east #1, Helgoland Island, Germany
latitude: 54.200001 54°12'0"N
longitude: 7.883333 7°52'60"E
[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 filum Dörjes, 1968 | Apr 1963 | 15 m | fine, medium sand |
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