472 



ME. O. THOMAS ON GAZELLES FROM ALGERIA. [J line 5, 



for the species to be described merely on the specimens I then 

 saw. 



Loche, in his work on the Mammals of Algeria, speaks of a 

 Gazelle known to the Arabs as "el Kiin," the name now used by 

 them for G. loderi, and no doubt the same species was intended. 

 His reference runs as follows : — " Les Arabes distinguent encore 

 sous les noms de el Rim et el Ghergui deux autres Gazelles que 

 nous n'avons pas jusqu'ici eu occasion d'examiner, et qui pourraient 

 etre des metis des especes precedentes " l . This sentence was 

 quoted by Lataste in 1885 2 , but he had no information of his own 

 to add to it. 



It has therefore been reserved for Sir E. Loder to clear up the 

 history of this interesting Gazelle, so long known by reputation, 

 but until now an unsolved mystery to the scientific world. As 

 his expedition into the desert was undertaken expressly to obtain 

 the Keem, and thereby settle a doubtful problem, it is only right 

 that the species should bear his name, which I have therefore bad 

 great pleasure in attaching to it. 



Whether the companion problem of " el Chergui " is equally 

 solved by Sir E. Loder's specimen of G. rufina above described is 

 a point which can be settled only when we know the exact locality 

 and Arab name of the latter. 



Sktdl-measurements(in millimetres) of the Algerian Gazelles referred to. 

 (All adult males.) 





Gazella 

 dorcas. 



G. cuvieri. 



G. rufina. 



G. loderi. 



Greatest length 



Basal lenorth 



170 

 158 



78 



50 

 20 

 44 

 19 



85 

 S3 



37 

 55 



303 :i 



99 8 



16 3 



70 3 

 112 3 



210 



187 

 92 



60 

 25 

 65 



27 

 113 

 111 



51 



60 



348 

 108 



105 



73 

 110 



(c.)204 



93 



69 



30 



52 



34 



124 



120 



59 

 66 



292 

 119 



22 



86 

 141 



194 

 173 



85 



54 

 24 



57 



24 



101 



98 



44 



55 



330 

 95 



14 



65 



192 





Anterior nares, length (gnathiou 

 to nasal tip) 



Anterior nares, greatest breadth . 

 Nasals, length 



Nasals, breadth 



Gnathion to orbit 



Palate length 



Gnathion to alveolus of front pre- 

 molar 





Horns — length round curves iu 

 front 





Least distance of horns apart 



Breadth across outside bases 

 Tip to tip 





1 Expl. Alg., Mamm. p. 69 (1867). 



2 Mamm. Barb, p. 174 (1885) (Act. Linn. Soc. Lord, xxxix.). 



3 In another finer specimen, whose basal length is about 5 mm. longer than 

 in that measured. 



