( 32 ) 



diagonal liorizontal diameter, as seen from above, 18-4 ; ditto below 19-8 ; 

 height 17-8. 



Hab. As above. 



2V/je: Adult female. B.M. No. 1:^. 11. 14. .57. Original number 12. Collected 



April 8, 1912. 



Although the differences between this animal and M. mzabi are not ver}- great, 

 they are of imi>nrtiince because of the complete geographical isolation of the two 

 forma. Gundis are inliabitants of rocky ground only, and, unlike .Terboas, Gcrbils, 

 and other desert animals, they are unalile to pass the barriers presented by the 

 rolling sand-dunes and stoneless areas of the Sahara. The rocky area of the Oaed 

 Mya inhabited by .1/ liarterti is about 300 miles south of Ghardaia, where if. mzabi 

 occurs, and intergrading specimens are therefore not likely to be found. 



With regard to the sizes of the bullae, so important among the Gundis, 1 

 may note the following dimensions as occurring in the different forms ; the 

 uieasurement given being the greatest diagonal horizontal diameter as viewed 

 from above : — 



Felovia vae 1-' ""u. 



Ctenodacti/ius gum/i 14'."i „ 



„ vali . . . . ■ 17'4 „ 



Maitsoutiera mzabi . . . . .17 ., 

 „ liarterii . . . IS'4 ,, 



[Ft was only in the Southern Oned Mya region, and the wild rocks of Ain 

 (Juettara, that we saw this animal, and besides the two examined by Mr. O.Thomas 

 we slint one at Am Gnettara, wiiich was put into spirits. — E. H.] 



l-">. Lepus kabylicus de Winton. 



(J 3 ; Hauimam Meskoutine, cast of Constantine. (\V. Rothschild and E. 

 Hartert.) 



The comparatively dark liare of the nortiurn zone of Algeria. 



[This is [jroliably the common iiare of the whole "Tell." It was nut at ail 

 rare near Hammara Meskoutine, but as we were there during the dose time we 

 could not very well i^o out for hare-shooting.— E. H.] 



10. Lepus pallidior B.-Ham. 

 cJ 23 ; 20 km. north-east of Biskra. (W. Uothschihl and E. Hartert.) 

 ? 1 ; Kef-el-Dor, Algerian Sahara. (E. Hartert and 0. Hilgert.) 

 The series of hares obtained in Algeria illustrates the gradual modification 

 of the species as the country becomes more and more desert southwards. Tlie 

 hare of the " Tell," or northern fertile region, L. Itabi/licas, is comparatively dark, 

 then follows the present paler and more greyish species in the Biskra region, to 

 be succeeded farther south by the pinkish buff L. ivhitakeri of the Sahara. Widely 

 diiferent as they look from each other, all would appear to be modifications of one 

 animal, as no essential diti'ercnces in skull or teeth are to be found. 



17. Lepus whitakeri Thos. 



<J 53, ? .52 ; Oued Nea, east of Ghardaia. 



c? 7 (young); near Hassi Marroket, 4ii km. south of El-Golea. 



? 10; Sidi-Djilali-Lakhdar (Oaed Mya), 180 km. sonth of El-Golea. 



c? 11, ? 3(j; Oued Mya, north of Ain Guettara. 



