156 



BULLETIN 99, UNITED STATES NATIONAL MUSEUM. 



Measurements of adult specimens Gra-phiurus — Continued. 



Form and locality. 



G. m. isolatus — i ontd. 



Mount Umengo 



Do 



Do 



Mount Kilimanjaro 



G. p. parvus. 



Tana River 



Jambeni Mountains 



Engare Ndare River 



Do 



O. p. dollmani. 



Ulukenia Hills 



Mount Sagalla 



Do 



O. personatus. 

 Rhino Camp, Lado 



' T3rpe. 



o a 



23.3 

 25.1 

 23.5 



25.5 



14.3 

 15.5 

 15.0 



15.2 



21.0 13.0 



20.4 12.4 



21.2 12.3 



21.4 12.7 



21.8 

 22.6 

 21.7 



21.3 



13.5 

 13.3 

 13.2 



13.8 

 14.7 

 13.7 



15.0 



11.2 

 11.4 

 11.1 

 12.2 



12.8- 

 13.0 

 13.0 



12.4 



a Type; Field Mus. Nat. Hist., Chicago. 



Family PEDETID^. 



Genus PEDETES Illiger. 



1811. Pedetes Illiger, Prodr. Syst. Mamm. et Avium, p. 81. (P. cajer.) 

 The East African "jumping hare" is specifically distinct from 

 Pedetes cafer of South Africa. The three well-marked forms known 

 from British East Africa are local representatives of one species and 

 all differ from cafer by having a very shallow depression in the anterior 

 palatine region of the skull. The forms of this animal are doubtless 

 very local in distribution. They are all very much alike externally, 

 but are easily separated by the characters of the skull. 

 For measuiements of specimens of Pedetes see page 158. 



PEDETES SURDASTER SURDASTER Thomas. 



Plates 3, 4, 5. 

 1902. Pedetes surdaster Thomas, Ann. and Mag. Nat. Hist., ser. 7, vol. 9, p. 440. 

 June. (Morendat, Naivasha Province, British East Africa; type in 

 British Museum.) 

 1910. Pedetes surdaster Roosevelt, African Game Trails, Amer. ed., pp. 473, 479, 

 486; London ed., pp. 485, 490, 497. (Part; reference to Naivasha 

 specimens.) 

 Specimens. — Fifty-three, including six odd skulls and seven 

 fetuses, from; 



British East Africa : Naivasha Station, 53 (Loring, Mearns, T- 

 Roosevelt.) 



