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424 AFRICAN GAME ANIMALS 



which is an association founded upon horn and skull 

 characters and not known to possess distinctive dental 

 characters of much weight. It is highly improbable that 

 the eland, if it did exist in America, lingered as late as the 

 Pleistocene. Gidley's specimen doubtless represents a genus 

 allied to the eland but peculiar to America. 



Key to the Genera 



Only males bearing horns 



Horns curved in a narrow spiral, triangular in cross-section and . jt/^ 

 seldom exceeding the head greatly in length ' 



Hoofs normal; tail bushy; ears larger Tragelaphus 



Hoofs greatly lengthened; tail tufted; ears smaller ^ \-p 



Limnotragus ' 



Horns curved in a wide open spiral, circular in cross-section, 

 greatly exceeding the head in length 

 Male with a long throat mane; throat uniform in color 



Strepsiceros 



Male without throat mane; a white patch on forethroat and 

 another on chest Ammelaphus 



Both sexes horned 



Horns curved in an open spiral, broadly elliptical in cross-section 

 and flattened, without a keel; coloration rufous 



Boocercus 



Horns closely spiral, circular in cross-section and furnished with 

 a prominent, rounded keel; coloration grayish or ful- 

 vous Taurotragus 



BUSHBUCKS 



Tragelaphus 



Tragelaphus De Blainville, l8i6, Bull. Soc. Philom., p. 75; type T. sylvaticus 

 of South Africa. 



The bushbucks are medium-sized antelopes in which 

 the males are armed with short, spiral horns, the females 

 being hornless. The horns seldom exceed the head much in 

 length and are furnished with a wide keel which gives them 



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