This volume provides systematic accounts of large African antelopes, treating hippotragine and tragelaphine groups. It organizes taxa by genus and species, giving detailed morphological descriptions, skull and horn characters, measurements, variations, and subspecies distinctions, along with information on geographic distribution and habitat. Each entry is accompanied by plates and figure descriptions illustrating skins, horns, skulls, and behavior. The text includes identification keys, discussion of taxonomy and synonymy, notes on rarity and extinction for certain species, and an appendix listing species and subspecies newly described during the work.