Damaliscus lunatus jimela and Damaliscus lunatus topi are the two subspecies of Damaliscus lunatus, another subspecies are D.l.tiang, D.l.korrigum and D.l.lunatus.
Damaliscus lunatus jimela and Damaliscus lunatus topi are the two subspecies of Damaliscus lunatus, another subspecies are D.l.tiang, D.l.korrigum and D.l.lunatus.
Unless the taxonomy has changes in the last few years (which I know is entirely possible) every source I've seen including ISIS has listed it as Damaliscus korrigum jimela.
On a quick reference search, the taxonomy has changed to favor the Damaliscus korrigum jimela name. Damaliscus lunatus is now reserved for just the Tsessebe.