What is "equine antelope"

Roan \Roan\ (r[=o]n), a. [F. rouan; cf. Sp. roano, ruano, It. rovano, roano.]

1. Having a bay, chestnut, brown, or black color, with gray or white thickly interspersed; -- said of a horse.

   Give my roan a drench.
   --Shak.

2. Made of the leather called roan; as, roan binding.

   Roan antelope (Zo["o]l.), a very large South African antelope ( Hippotragus equinus). It has long sharp horns and a stiff bright brown mane. Called also mahnya, equine antelope, and bastard gemsbok.