This volume provides systematic accounts of small African antelopes, treating two subfamilies with detailed genus- and species-level descriptions. Each entry summarizes external appearance, skull and horn structure, measurements, geographic range, and distinguishing characters, and is often accompanied by plates and anatomical figures. The authors compare similar taxa, propose genus limits, and present diagnostic keys and synonymies. Emphasis falls on comparative osteology and external morphology to clarify classification, while distributional notes and illustrative plates support identification and further study.