| Key | Title |
| 9 | Key to the freshwater eels of southern Africa. |
| 124 | Key to the species of freshwater eels (Anguillidae) occuring in Western Central Pacific. |
| 1232 | Key to the New Guinean species of Anguilla. |
| 1710 | Key to the Anguilla species of southern Africa (Anguillidae). |