824 MAJOE G. E. H. BARRETT-HAMILTON AND 



not differ appreciably from examples of eastaneus from the neigh- 

 bouring mainland. Skulls of eastaneus from South-eastern 

 England seem to attain slightly larger dimensions than those 

 from northern Britain, and this may indicate the existence of two 

 forms. The Jura Shrew is interesting in having a pelage inter- 

 mediate in character between that of eastaneus and grantii de- 

 scribed below ; in the four skulls seen the dental characters are 

 those of normal araneus, and therefore this form must be left 

 with the latter species. 



SoREX GRANTII . (PI. LXXXIY. fig. 1, & text-fig. 136.) 

 Abstract P. Z. S. 1913, p. 18 (April 15). 



Twenty-two, Islay. Dimensions : — 



Head & Hind 



body. Tail. foot. 



No. 73, male, 24 April 1912 75 36 13 



74, „ „ ., „ 77 36 13 



77, „ 26 „ „ 79 37 13 



80, „ 30 „ ,, 80 36 13 



82, ., „ „ „ 80 36 13 



83, „ „ „ „ 80 37 13 



84, „ ., „ „ 78 38 13 



92, „ 2 May „ 78 35 12 



95, „ „ „ „ 75 35 12 



98, ., 7 „ „ 75 35 12 



100, „ 8 ,. „ ...... 75 35 12 



101, „ ., „ „ 76 36 12 



105, „ 10 „ „ 75 36 13 



72, female, 23 April „ 83 37 13 



76. „ 26 ., ., 75 37 13 Type. 



81, „ 30 ., 78 36 13 



96, „ 3 May „ 77 35 12 



106, „ 10 „ ., 75 35 12 



157, female, juv., 3 Aug. 1912 ... 75 38 12 



158, „ ,, „ „ ., ... 80 34 12'5 

 161, ., ., 5 ., „ ... 73 36 12 

 165, „ „ 8 „ ,, .. 70 38 12 



Average of 18 adults of both sexes :— 77-3 36 12-6 



For cranial measui-ements see Table at p. 828. 



This is a very remarkable new Shrew, distinguishable at a 

 glance from the common British S. araneus eastaneus hy its dusky 

 upper side in strong contrast to the light flanks. The dentition is 

 peculiar in the fact that more than half of the individuals have 

 lost the posterior upper unicuspid, sometimes on one side only, 

 but more frequently on both sides, the absence of this tooth in 

 these cases being compensated for by enlargement of the four 

 remaining unicuspid s 



