What is "kobus ellipsiprymnus"

Water buck \Wa"ter buck`\ (Zo["o]l.) A large, heavy antelope ( Kobus ellipsiprymnus) native of Central Africa. It frequents the banks of rivers and is a good swimmer. It has a white ring around the rump. Called also photomok, water antelope, and waterbok.

Note: The name is also applied to other related species, as the leche ( Kobus leche), which has similar habits.

Buck \Buck\ (b[u^]k), n. [OE. buk, bucke, AS. bucca, bua, he-goat; akin to D. bok, OHG. pocch, G. bock, Ir. boc, W. bwch, Corn. byk; cf. Zend b[=u]za, Skr. bukka. [root]256. Cf. Butcher, n.]

1. The male of deer, especially fallow deer and antelopes, or of goats, sheep, hares, and rabbits.

   Note: A male fallow deer is called a fawn in his first year; a pricket in his second; a sorel in his third; a sore in his fourth; a buck of the first head in his fifth; and a great buck in his sixth. The female of the fallow deer is termed a doe. The male of the red deer is termed a stag or hart and not a buck, and the female is called a hind.
   --Brande & C.

2. A gay, dashing young fellow; a fop; a dandy.

   The leading bucks of the day.
   --Thackeray.

3. A male Indian or negro. [Colloq. U.S.]

   Note: The word buck is much used in composition for the names of antelopes; as, bush buck, spring buck.

   Blue buck. See under Blue.

   Water buck, a South African variety of antelope ( Kobus ellipsiprymnus). See Illust. of Antelope.