S.A. .TOFKXAL OF St'lEXC'R, VOL. XVII. 



TLATR XXVIir. 



Photo, by I. B. Pole Evans. 

 Fig. 55. — Acanthosicyos horrida. — Walfish Bay. 



Fig. 56. — Tnmnr'ix a iiif\tJnta. 

 THE NAMIB. 



Photo, by I. B. Poli' Evan 

 -Walfisli Bay. 



