| Singular | Plural | |
|---|---|---|
| Nominativ | delphin, delphineis | delphines |
| Genitiv | delphinis | delphinium, delphinum |
| Dativ | delphini, delfini, delphinique, delphine | delphinibus |
| Akkusativ | delphinem | delphines |
| Ablativ | delphine | delphinibus |
| Vokativ | delphin, delphineis | delphines |