4 <^re 



at ana : 



>mau 



ijamc oi rviiiLa 



A. The fawn 



of the back 



not invaded by the white of the rump. 



i. 



Dorcas Gazelle {Gazella donas). 



2. 



Edmi 



„ ( ,, cuvieri). 



3- 



Speke's 





, spekei). 



4- 



Pelzeln's 





pelzelni). 



5- 



Loder's 





leptoceros). 



6. 



Isabella 





Isabella). 



7- 



Heuglin's 





tilonura). 



8. 



Red-fronted 





rufifrons). 



9- 



Rufous 





, rufina). 



10. 



Thomson's 





, thomsoni). 



B. The whit 



■ of the rum 



3 extend 



ng more or less on to the fa 



the back. 



n. Peters's Gazelle {Gazella petersi). 



12. Grant's „ ( „ granti). 



13. Sommerring's „ ( „ scemmerringi). 



14. Addra „ ( „ ruficollis). 



15. Dama ,, ( „ dama). 



Of Grant's gazelle two races, a northern and a southern, may be recognised ; 

 these being considered by some as distinct species ; and the Mhorr (G. dama 

 mhorr) seems but to be regarded as a variety of the Dama. 



Dorcas Gazelle {Gazella dorcas) 



Rhozal or Hemar of Algerian Arabs ; Ghasala of 

 Arabs of Palestine 



This and the three, G. cuvieri, G. rufina, and G. leptoceros, com- 

 prise, so far as is known, the only species of the genus found in North 

 Africa between the western frontier of Egypt and the Atlantic Ocean 

 north of the Sahara Desert. With the exception of Gazella dorcas, the 

 common gazelle (which is found elsewhere in the Mediterranean basin), 



