EXPLANATION OF PLATES. 



The smaller skulls were photographed one and one-half times natural size and 

 reduced one-third in the half-tone, while the medium-sized specimens were taken 

 natural size. The scale as given is in most cases correct, but allowance should be 

 made for very slight variations from the size of the actual specimens which some- 

 times exist in plates made by the photographic process. 



Plate 1. 

 Map of Eastern Equatorial Africa. 



Plate 2. 



Mounted hyenas in the U. S. National Museum: 



Upper figure. Highland Striped Hyena ( Eysena hysena schillingsi) . Adult female ; 

 Cat. No. 163110; Olarakeri, Sotik, British East Africa, July 1, 1909. Edmund 

 Heller. 

 Lower figure . Eastern Spotted Hyena ( Crocuta crocuta germinans) . Adult female ; 

 Cat. No. 163106; southwest side of Mount Kenia, British East Africa, October 

 12, 1909. J. A. Loring. 



Plate 3. 



Palatal views of skulls of Hyxna (two-thirds natural size): 



Upper figure. Hysena hyxna bergeri. Adult female; Cat. No. 182040; Lakiundu 



River, British East Africa, July 12, 1911. E. Heller. 

 Lower figiu-e. Hyxna duhia. Adult female; Cat. No. 172923; "Habesch," 

 Eritrea. G. Schrader. 



Plate 4. 



Group of mounted East African Lions in U. S. National Museum: 



Fells leo massaica. Adult male, 2 adult females, and 2 young. Collected by 

 Col. Theodore Roosevelt. Group designed and built by George B. Turner. 



Plate 5. 



Mounted East African Leopard and Cheetah in U. S. National Museum: 



Upper figiue. East African Leopard (i^eZis pardus suahelica). Adult male; Cat. 



No. 163095; Meru, British East Africa, September 7, 1909. E. Heller. 

 Lower figure. Rainey's Cheetah (Acinonyx jubatus raineyi). Adult male; Cat. 

 No. 161922; Wami Hill, Kapiti Plains, British East Africa, May 2, 1909. Ker- 

 mit Roosevelt. 



Plate 6. 



Skulls of type-specimens {natural size). 



Figs. 1,2. Erinaceus sotihx'KQWQT. Adult male; Cat. No. 162112. (=Erinaceus albi- 



ventris hindei.) 



3. Elephantulus rufescens inariakanx Heller. Adult female; Cat. No. 181821. 



4, 5. Elephantulus phxus Heller. Adult male; Cat. No. 162074. {=Elephan- 



iulus rufescens phxus.) 



6,7. Petrodomus sullani sangi Heller. Adult male; Cat. No. 181822. { = Cer- 



coctenus sultan sangi.) 



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