Tvijälp (Tvielp, Tvihjelp, Tvihjälp ), Finland
latitude: 60.155834 60°9'21"N
longitude: 24.805555 24°48'20"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]
Thalassoplanella collaris Luther, 1946 | 1963 or earlier | Lappvik. Helsingfors, bei Tvielp. |
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