824 



APODEMUS HEBRIDENSIS de AViiiton 



1895. Mtia lu'bridcnsis de Wintou, The Zoologist, 3rd ser., xix, p. 3G9, 

 October, 1905. Type in British Museum. 



1895. Mus sylvaticHS hebridensis de Wiutou, The Zoologist, 3rd ser., xix, 

 p. 426, November, 1905. 



1900. Mus sylvatlcus hebridensis Barrett-Hamilton, Proc. Zool. Soc., 

 London, p. 403. 



1910. Mils sylvaticns hebridensis Trouessart, Fauue j\Iamm. d'Europc, 

 p. 151. 



Type Jocaliti/. —Vig, Island of Lewis, Outer Hebrides, 

 Scotland. 



Geographical distribution. — Island of Lewis, and Barra Island, 

 Hebrides. 



Diagnosis. — Size about as in the large southern races of 

 Apodemus sylvaticus ; head and body, 106 to 112 ; tail vertebra?, 

 95 to 100 ; hind foot about 25 ; condylobasal length of skull, 24 

 to 25 mm. ; ear reduced in size, barely or not reaching eye when 

 laid forward, its height above meatus 15 to 16 mm., its width in 

 dry specimens noticeably less than in A. sylvaticus; general 

 colour of upper parts essentially as in ^. sylvaticus sylvaticus, but 

 underparts so heavily washed with dull buffy brown that line of 

 demarcation along sides is ill-defined ; pectoral spot present, 

 usually rather longer than in A. sylvaticus, but not forming a 

 collar ; skull and teeth as in larger forms of A. sylvaticus. 



Meamrements. — Type (adult male) : head and body, 106 ; 

 tail, 96 ; hind foot, 25 ; ear from meatus, 16. Two adult males 

 and an adult female from the type locality : head and body, 106, 

 112 and 108 ; tail, 99, 100 and 95 ; hind foot, 25, 25 and 23-5 ; 

 ear from meatus, 16, 16 and 15. For cranial measurements see 

 Table, p. 827. 



Specimens examined. — Thirteen, all from the Islands of Lewis and 

 Barra. 



Remarks. — While the colour of this animal is occasionally 

 duplicated by specimens from Great Britain and the Continent, 

 the combination of large size, small ear, and dark tints is 

 sufficient to distinguish the Hebridean Apodemus as a sharply 

 defined local form. 



5. Island of Lewis, W. E. de Winton (c & p). 95. 10. 25. 1. 



Hebrides. {Type of species.) 



4 (5, 5 9. Island of Lewis. W. E. de Winton (c & p). 8. 10. 11. 13-21. 



6. Barra Island. Col. R. W. Finney (c & p). 11. 1. 3. 314. 

 6 al. Barra Island. J. McRurie (c & p). 11. 1. 3. 415. 



