Jezioro Mamry (Mauer See, Mauersee, Mamry), Suwalki, Poland
latitude: 54.166698     54°10'0.11"N
longitude: 21.700001     21°42'0"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] 
| Mesostoma masovicum Dorner, 1902 | 1902 or earlier | |||
| Gieysztoria triquetra (Fuhrmann, 1894) | 1902 or earlier | Ostpreussen, Mauersee und Brackwasser des Frischen Haffs bei Pillau. | 
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