832 



MAJOR G. E. H. BARRETT-HAMILTON AND 



Head & 



Hind 



body. Tail. foot. Ear. 

 No. 103, male, juv., 9 May 1912. 105 

 107, ,, adult, 10 „ ,, 



159, ,, subad., 3 August ,, 

 1^3, ,, ,, 7 ,, ,, 



87, female, , 30 April 



91, „ adult, 2 May ,, 



160, ,, subad., 3 August ,, 

 162, „ „ 6 



For cranial measurements see Table at p. 834. 



This mouse resembles M. agrestis exsul in size and general 

 propoi'tions, but may be recognized at all seasons by its much 

 thinner coat and the much lesser amount of yellowish wash on 

 the under side, resulting in the slaty bases of the hairs being- 

 visible and taking part in the general coloration; the under side 

 thus resembles that of immature exsul. The uj)per side is slightly 

 less brightly coloured than in exsul ; the hairs of the back reach 

 a length of about 8 mm. 



Text-fiff. 138. 



Dorsal view and profile of skulls of (A) Ilicrotus agrestis exsul and 

 (E) M. a. macgilli'vraii. Natural size. 



A quite young male (No. 79) is in dusky pelage, with very 

 slight development of the light hair-tips. The hair-tips of the 

 under side are of a very light tint, increasing in depth through 

 the flanks to the back and poll, where they are deepest but never 

 approach the rich bufl:' of adults. The rump of this specimen is 

 more dusky than the back. 



In each of the eight skulls examined the anterior upper cheek- 



