124 Mr, 'SI. A. G. Hiutoii on 



liighlands agree with the Bute race in coloration, and to a 

 greater or less extent in skull-characters ; but they are 

 slightlv larger and their skulls have some peculiarities of 

 their own. Much more material is required from the 

 Scotch highlands before the status of these forms can be 

 satisfactorily determined. 



Apodemus hebridensis hehridensis, de Winton. 



Hab. Lewis, Outer Hebrides. 



Material examined and dimensions, (a) Seven from Garry- 

 nahiiic, Callernish, Western Lewis, collected by Mr. D. An- 

 derson, oth-lOth April, 1913 :— 



Tail, Hind foot, 

 Head without without 

 & body, hairs, claws. Ear. C.-b. 1. 



Average 90-43 85-78 23-01 14-78 



Maximum. No. 23, d, 6th 



April, 1913 98 9o 24 14-0(1-5) 24-7 



The males have the pectoral spot feebly developed ; the 

 silvery ventral surface shows hardly a trace of a yellowish 

 tiuge,' but to either side of the clear median line it is dark- 

 ened here and there by the slaty bases of the hairs which 

 show through. Line of demarcation rather sharp. In the 

 females the pectoral spot is larger and the ventral surface 

 shows a well-marked tendency to be suffused with buffy, 

 |)articularly in the median region, where this tint forms an 

 irregular backward extension from the pectoral spot. Line 

 of demarcation less clearly defined than in the males. These 

 characters are more obvious in nos. 19 and 21 than in 

 nos, 24; and 25. 



{b) Two from Tarbet, Harris, collected by Mr. Ander- 

 son : — 



Tail, Hind foot. 

 Head without without 

 & bod}', bail's. claws. Ear. 



No. -26, 2 > 20rii April, 1913 90 83 22-5 14-5 



No. 27, 2, 21.^t „ „ 85 79 23-5 14-5 



These agree with the females from Garry nahine in cha- 

 racter of the ventral surface ; they are nearl}' as in nos. 19 

 and 21. 



{c) Sixteen from Stornoway, North-east Lewis, collected 

 bv Mr, Auderson, 20th-31st March, 1913 : — 



