THE DUYKER-BOK. 63 1 



sometimes over bushes, and at others through them. When it perceives 

 that it is observed, it will crouch in the long grass or behind a bush, as 

 though it were going to lie down. This conduct is, however, nothing 

 but a ruse for the purpose of concealing its retreat, as it will then crawl 

 along under the foliage for several yards, and wTien it has gone to some 

 distance in this sly manner, will again bound away. It is therefore very 

 difficult to follow the course of a Duyker, as it makes so many sharp turns 

 and leaps, that both ' spoorer ' and dogs are frequently baffled. 



" If the course of the buck can be watched, and the place discovered 

 where it lies down after its erratic manoeuvrings, it can be easily stalked 

 by approaching it from the leeward side. One must, however, be a 

 good shot to secure a Duyker with certainty, for the little creature is so 

 tenacious of life that it will carry off a large charge of buckshot without 

 any difficulty, and the irregular course which it then pursues requires 

 great perfection and quickness in shooting with a single ball. 



" The height of the Duyker-bok is about twenty-one inches at the 

 shoulder, but the animal is somewhat higher at the croup, where it 

 measures nearly twenty-three inches. It may be distinguished from the 

 other species belonging to the large genus in which it is placed, by a 

 ridge upon the front surface of the horns, which runs through the four 

 or five central rings with which the horns are marked, but does not 

 reach either to the tip or to the base. The general color of this animal 

 is brown-yellow, fading into white on the abdomen and all the under 

 parts, including the tail. The upper part of the tail is black, and there 

 is a black streak running up the legs, and another on the nose." 



The Rhoode-BOK, CcphalopJius natalcnsis, is common in Natal. Its 

 color is a deep reddish-brown ; it stands above two feet high, and the 

 horns are about three inches long, straight and pointed. 



GENUS TETRACEROS. 



The Chickara, Tctraccros quadricornis, is the best known of the two 

 species of the genus. 



In the scientific title of this very curious species of Antelope both 

 words bear the same signification, namely, "four-horned." These sin- 

 gular animals are natives of India, where they are known also under the 

 titles of Chousingha, or Chouka, the last word being derived from the 



