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Halsholmen, Finland
[there are several islands in Finland named Halsholmen (Halsholm), not sure this was the location Luther 1960 referenced]
latitude: 59.983299
longitude: 21.8333
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
| Macrostomum curvituba | prior to 1960 | |||
| Maehrenthalia dubia | Sep 3, 1956 | 1-1.5 m | rinsed off Fucus. | |
| elongatum spinosum | Sep 10, 1956 | 1-3 m | Schlittennetz | Halsholmsgrunden, Fucus, Chorda filum, Mytilus, etc. |