Included taxa
Casemir, H. (1955). Die Spinnenfauna der Hülserbruches bei Krefeld. Gewässer und Abwässer 8: 24-51. 
Species
| Species | Family | Page / figures | published as |
|---|---|---|---|
| Hahnia helveola | Hahniidae | 42, f. 8 (f) | Hahnia helveola |
| Hahnia ononidum | Hahniidae | 42, f. 7 (f) | Hahnia mengei |
| Hahnia pusilla | Hahniidae | 42, f. 9 (f) | Hahnia pusilla |
| Iberina montana | Hahniidae | 42, f. 5-6 (mf; m is misidentified per Harm, 1966: 354) | Hahnia montana |
Genera
No genus found for this reference