| nitzschia pusilla | | luxembourg: rollingerbaach river - rollingen (al68b) city | | 1891520105 |
| nitzschia pusilla | | luxembourg: rollingerbaach river - rollingen (al68b) city | | 1891520104 |
| nitzschia pusilla | | Luxembourg:Rollingerbaach river | | 58416164 |
| nitzschia pusilla | | Luxembourg:Rollingerbaach river | | 58416163 |