CONTENTS ix 



PAGE 



XXII. GAZELLA ALBONOTATA ..... 82 



XXIII. GAZELLA THOMSONI ..... 83 

 3. SUBGENUS NANGER 85 



XXIV. GAZELLA (NANGER) GRANTI .... 86 

 A. Gazella grant! grant! .... 88 

 B. Gazella grant! roosevelti .... 90 

 C. Gazella grant! robertsi .... 91 

 D. Gazella grant! lacuum .... 92 

 E. Gazella grant! raineyi .... 92 

 F. Gazella grant! bright! .... 93 

 G. Gazella grant! notata .... 93 

 H. Gazella grant! serengetae .... 94 

 I. Gazella grant! peters! .... 95 



XXV. GAZELLA (NANGER) SOEMMERRINGI. . . 96 



A. Gazella soemmerringi soemrnerringi . 98 



B. Gazella soemmerringi erlangeri ... 99 



C. Gazella soemmerringi sibyllae . . . 100 



D. Gazella soemmerringi casanovse . . 100 



E. Gazella soemmerringi berberana . . 100 



F. Gazella soemmerringi butter! . . . 101 



XXVI. GAZELLA (NANGER) DAMA .... 102 



A. Gazella dama dama ..... 104 



B. Gazella dama mhorr ..... 104 



C. Gazella dama permista .... 106 



D. Gazella dama ruficollis .... 106 



III. GENUS ANTIDORCAS ...... 109 



ANTIDORCAS MARSUPIALIS ..... 109 



A. Antidorcas marsupialis marsupialis . .111 



B. Antidorcas marsupialis centralis . . 112 



IV. (zENUS LlTHOCRANIUS. ..... 113 



LlTHOCRANIUS WALLERI ...... 114 



A. Lithocranius waller! waller! . . . 115 



B. Lithocranius walleri sclateri . . . 116 



SUBFAMILY xv. ORYGIN^: ...... 117 



I. GENUS ORYX . . . . . . .118 



I. ORYX GAZELLA ...... 119 



II. ORYX BEISA 122 



A. Oryx beisa beisa ..... 123 

 B. Oryx beisa gallarum . . . . .124 



C, Oryx beisa annectens .... 125 



D. Oryx beisa callotis 125 



