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SIR V. BROOKE ON THE ROYAL ANTELOPE. [May 21, 



Skull of Nanotragus pygmaus. 



These characters are common to the following genera of other 

 authors, which I give below with the dates of their creation : — 



1844. Nanotragus, Sund. Vet. Akad. Handl. p. 191. Type N. 

 spiniger. 



1846. Calotragus, Sund. Vet. Akad. Handl. p. 192. Type A. 

 tragulus, Licht. Berl. vi. p. 176 (1814). . 



1846. Scopophorus, Gray, Ann. & Mag. Nat. Hist. p. 232. Type 

 A. scoparia, Schreb. 



1846. Nesotragus, Von Diiben, Vet. Akad. (Efvers. p. 221 . Type 

 N. moschatus, Von Diib. 



1846. Oreotragus, Gray, Ann. & Mag. Nat. Hist. p. 231. Type 

 O. saltatrix. 



I therefore propose to unite these genera under the common title 

 of Nanotragus, and to regard the minor sections as of subgeneric 

 value only. The groups would then be arranged as follows : — 



a. No false hoofs, no knee-brushes. {Nanotragus.) 



Nanotragus pygmceus, Linn. Guinea. 



moschatus, V. Diib. Zanzibar, E. Africa. 



tragulus, Licht. S. and E. Africa. 



b. False hoofs and knee-brushes present. {Scopophorus.) 



Nanotragus scoparia, Schreb. S. Africa. 



montanus, Riipp. N.E. Africa. 



-— — hastatus, Pet. Mozambique. 



c. False hoofs present, knee-brushes absent. (Oreotragus.) 



Nanotragus melanotis, Thunb. S. Africa. 

 oreotragus, Schreb. N. & S. Africa. 



