| Key | Title |
| 4 | Key to species of Mugilidae occurring on eastern central Atlantic coast of Africa. |
| 1691 | Key to the genera of Mugilidae of Lower Guinea, West-Central Africa. |
| 1692 | Key to the Mugil species of Lower Guinea, West-Central Africa. |
| 1693 | Key to the Liza species of Lower Guinea, West-Central Africa. |