Volga River, Russia
latitude: 59.966702     59°58'0.13"N
longitude: 30.1667     30°10'0.12"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] 
| Plagiostomum lemani Forel & Du Plessis, 1874 | 1913 or earlier | mud | ||
| Phaenocora (Megaloderostoma) polycirra Beklemischev, 1929 | 2002 or earlier | Upper Volga River basin. | ||
| Plagiostomum lemani Forel & Du Plessis, 1874 | 1900 or earlier | |||
| Plagiostomum quadrioculatum Zacharias, 1894 | 1900 or earlier | 
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