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Hokkaido (Hokushu, Jesso, Yeso, Yezo), Japan
latitude: 44
longitude: 143
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
| Pseudoceros albicornis | 1944 or earlier | Hokkaido. | ||
| Pseudoceros japonicus | 1944 or earlier | |||
| Bipalium trilineatum | 1857 or earlier | in collibus insulae "Jesso"; inger folia putrida. | ||
| Polycelis auriculata | 1916 or earlier | Middle and South Hokkaido, North adn Middle Honshû. | ||
| triquetra orientalis | 1953 or earlier | |||
| Notocomplana koreana | 2017 or earlier | |||
| Notocomplana septentrionalis | 2017 or earlier |