| Species | Name Used in Reference |
|---|---|
| Hydrocynus brevis (Günther, 1864) | Hydrocynus brevis (p. 195) |
| Hydrocynus forskahlii (Cuvier, 1819) | Hydrocynus forskahlii (p. 193;fig.25b) |
| Hydrocynus goliath Boulenger, 1898 | Hydrocynus goliath (p. 197) |
| Hydrocynus tanzaniae Brewster, 1986 | Hydrocynus tanzaniae (p. 199;fig.30) |