| Usually, all species of the Alcelaphinae, Antilopinae, Hippotraginae, Reduncinae, Cephalophinae, many Bovinae, the grey rhebok, and the impala are called antelopes. |
| Grey rhebok are less commonly seen and are scarce, but may be observed along the beach hills at Olifantsbos. |
| The impala and rhebok were also not included in tribe-level analyses because each is the sole extant member of its tribe. |
