ON TJIK OUBIlNSEY CB.OCIBUEA. 1043 



.00. On the (itiicrnsey Crocidura. 

 By Ivoii G. S. MoNTAUUK, F.Z.S., and Giia.ce Pickfokd. 



[Received October 11, 1923 : Read November 6, 1923.] 



Among the material collected by G. E. Pickford in the Channel 

 Isliuids in August and September 1923, is a seiies of twelve 

 shrews from Guernsey. The examination of this series, and of 

 four Guernsey shrews already in the British Museum collection, 

 reveals a number of features which make it necessary to distin- 

 guish tin's race from the typical form Crocidura russida russtda. 

 The few Guernsey specimens examined by G. S. Miller*, though 

 recorded as smaller than normal specimens of the large typical 

 form of the Continent, were insufficient in number to make clear 

 the characteristic nature of their dimensions. The uniformity 

 of the small dimension throughout the now extended series leaves, 

 however, no doixht of the distinct nature of the Guernsey race. 



The following tabvdation of the diagnostic characters of the 

 European laces of C. russula indicates their affinities. 



C. u. RUSSULA Hermann. 



Distribution. Central Europe, from Holland and Central Ger- 

 many to the valley of the Garonne and the coast of South- 

 Eastern Prince. Italy. 



Diagnosis. Size rather large. 

 (a) Hind foot 11 -7-1 4. 

 {h) Condylobasal length of skull 19-20-4. 

 (c) Average of 29 adults : HB. 78-3; T. 38-7 : HF. 12-8. 

 Colour usually dark. 



C. K. PULCURA Cabrera. 



Distribution. Central and Southern Spain. Lowlands of 

 France south of the Gironde. 

 Diagnosis. Smaller than G. r. russula. 



{a) Hind foot 10-8-13. 



(&) Condylobasal length of skull 18-19-4. 



(c) Average of 24 adults : HB. 72-8 ; T. 37-1 ; HP. 11-9. 



Usually paler in colour than G. r. russida. 



C. R. oiNTRiE Miller. 



Distribution. Cintra, Portugal. 

 Dlaqnosis. Size as in G. r. lyidchra. 

 \a) Hind foot 11-4-12-7. 



{h) Condylobasal length of skull 18-19-2. 



(c) Average of 10 adults : HB. 67-6 ; T. 37-7 ; HF. 11 -9. 



Hairs with a peculiar strong coppery lustre. 



* G. S. Miller, Cafciilogue of the Mammals of Western Em-ope, B.M., 1912. 



