| Singular | Plural | |
|---|---|---|
| Nominativ | crepitacillom, crepitacillum | crepitacilla |
| Genitiv | crepitacilli | crepitacillorum, crepitacillum |
| Dativ | crepitacillo | crepitacillis |
| Akkusativ | crepitacillum | crepitacilla |
| Ablativ | crepitacillo | crepitacillis |
| Vokativ | crepitacillum | crepitacilla |