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Tvärminneträsket (Tvärminne träsk, Tvärminneträsk), Finland
latitude: 59.866669
longitude: 23.200001
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
| Castrada lanceola | 1963 or earlier | Tvärminne träsk | ||
| Castrada neocomensis | 1902-1946 | Tvärminne: Tvärminne träsk | ||
| Castrada armata | Jul 1902 | Tvärminne träsk. | ||
| Strongylostoma radiatum | 1963 or earlier | Tvärminne träsk | ||
| elongatum elongatum | Jul 10, 1949 | Ekenäs: Tvärminne träsk, äussere Grenze des Scirpus lacustris-Bestandes ca 30 cm tiefe. | ||
| Rhynchomesostoma rostratum | Apr 28, 1952 | |||
| Mesostoma ehrenbergii | 1963 or earlier | |||
| Mesostoma productum | 1902-1924 | Tvärminne träsk, Funde in d. Jahren 1902-1924 | ||
| Mesostoma lingua | 1963 or earlier | Tvärminne träsk | ||
| Microstomum lineare | 1960 or earlier | Tvärminne träsk | ||
| Gieysztoria infundibuliformis | 1955 or earlier | Tvärminne träsk |