| unio crassus | | russia: river ivitza, volga basin, rameshkovsky district, tver oblast | | 1587105396 |
| unio crassus | | russia: river ivitza, volga basin, rameshkovsky district, tver oblast | | 1587105398 |
| unio crassus | | russia: river ivitza, volga basin, rameshkovsky district, tver oblast | | 1587105400 |
| unio crassus | | russia: river ivitza, volga basin, rameshkovsky district, tver oblast | | 1587105384 |
| unio crassus | | russia: river ivitza, volga basin, rameshkovsky district, tver oblast | | 1587105359 |
| unio crassus | | russia: river ivitza, volga basin, rameshkovsky district, tver oblast | | 1587105357 |
| unio crassus | | russia: river ivitza, volga basin, rameshkovsky district, tver oblast | | 1587105355 |
| unio crassus | | russia: river ivitza, volga basin, rameshkovsky district, tver oblast | | 1590065052 |