310 WATERBUCKS AND KEEDBUCKS chap. 



smallest species do uot exceed the dimensions of a Hare. None 

 are really large. 



Tetraceros is an Indian genus characterised, as its name 

 denotes, by the fact tliat it possesses four horns. It is the 

 posterior pair which correspond to the single pair of Cepha- 

 loj)hus. The anterior pair, which are much smaller and are 

 sometimes absent, are a new pair. The female of this Antelope is 

 hornless. Sheep axe occasionally four-horned, and there is indeed 

 a breed of such in Kashmir. A four -horned Chamois was 

 described by the late Mr. Alst(^)u. 



The Klipspringer, Orcotragus saltator, is the first type of a 

 third section ; as its name denotes, it is an Antelope wdth Goat- 

 like ha1)its, Ijeing found particularly among rocks. The horns 

 are short and straight. This, the only species of the genus, is 

 African in range, of which its Dutch name gives evidence. 

 A specimen in the Zoological Society's Gardens (as has been 

 pointed out to me by Mr. Mercer) had the habit of depositing the 

 secretion of the tear gland upon a mass of concrete in its 

 enclosure, the secretion thus exuded forming a pointed heap of 

 hardish matter. It may be that the object of this is to guide its 

 fellows to its wiiereabouts. 



Ovrehia is a less-known genus, larger in size, but witli horns 

 of the same character, though longer. 



The Grysbok and the Steinbok, genus EapliAceros, have similar 

 horns. This as well as the hist two genera have horns in the 

 male only. 



One of tlie smallest of Antelopes belongs to an allied genus ; 

 this is Ncotragus lyyfjmaeus. It is known as the Eoyal Antelope, 

 a name apparently derived from Bosnian's statement that the 

 neoToes called it " the kino- of the harts." Its horns are very 

 small. Tlie height of the animal is only 1 inclies. Horns are 

 present in the male alone. Tlie last three genera are African. 



The Cervicaprine series, which is also African,includes the Water- 

 bucks and Eeedbucks, so called on account of their water-loving 

 propensities. As in the last series, from which they are separated by 

 Sclater and Thomas, but with which they are united by Flower, 

 there are horns in the male only. These horns, though not twisted, 

 are long. The typical genus is Gohus, of which there are eleven 

 species. The Waterbuck, C. ellijjsiijrymnus, and the Sing-sing, 

 C. unduosus, are perhaps the best-known species ; the former is 



