Keywords: PZSL1889Page004.png Catoblepas gnu sic Connochaetes gnou <small> Zimmermann 1780 </small> ™ en Head of a female 2-year-old Black Wildebeest born in the F E Blaauw collection July 22 1886 <br/> a / b Frontal straight part of horns c /d Denuded center of horns Proceedings of the Zoological Society of London http //archive org/details/proceedingsofgen89zool vol 1889 issue 1 http //archive org/stream/proceedingsofgen89zool page/n33/mode/1up page 4 1889 F E Blaauw text PD-old PZSL 1889-1 Connochaetes gnou Connochaetes heads Bovidae horns |