| Species | Name Used in Reference |
|---|---|
| Hippopotamyrus aelsbroecki (Poll, 1945) | Gnathonemus aelsbroecki (p. 46;fig.4 ) |
| Marcusenius ghesquierei (Poll, 1945) | Gnathonemus ghesquierei (p. 45;fig.3 ) |
| Stomatorhinus corneti Boulenger, 1899 | Stomatorhinus corneti (p. 38 ) |
| Stomatorhinus kununguensis Poll, 1945 | Stomatorhinus kununguensis (p. 40;fig.2 ) |
| Stomatorhinus schoutedeni Poll, 1945 | Stomatorhinus schoutedeni (p. 38;fig.1 ) |