| perforatella bidentata | | Germany: Hamburg, Hamburg, Poppenbuettel, valley of Alster river, Treudelberg, 30 m | | 1183150351 |
| perforatella bidentata | | Germany: Hamburg, Hamburg, Poppenbuettel, valley of Alster river, Treudelberg, 30 m | | 1183149149 |
| perforatella bidentata | | Germany: Hamburg, Hamburg, Poppenbuettel, valley of Alster river, Treudelberg, 30 m | | 1183151881 |