198 ^Ir. O. Thomas on 



that of G. mimula, ^lill. Brain-case o£ the narrow high 

 type characteristic of C. russula. 



Dimensions of the type (measured in flesh) : — 



Head and body 77 mm. ; tail 38 * ; hind foot 14 ; ear 9. 



Skull : condylo-basal length 21 ; basal length 19 ; greatest 

 breadth 9-6; height of brain-case from basion 5-4; length of 

 upper tootii-series 9"4. 



Ilah. and type as above. 



This Eastern representative of the common G. russula is 

 readily distinguishable from any of the described forms of 

 that species by its dark colour, and especially its very dark 

 under surface, which is scarcely lighter than the upper side. 



7. Grocidura leucodon persica, sp. n. 



c?. 127; ?. 128. Elburz Mts., near Demavend. Alt. 

 G500'. 2nd May, 1907. B.M. no. 7. 7. 14. 9. Type. 



" Trapped near a stream in oak- forest." — R. B. W. 



Quite like true German G. leucodon in size, proportions, 

 and skull, but the fur is shorter (hairs of back about 3*5 mm.) 

 and the colour of the adult is much paler, that of the type 

 being somewhat paler than Ridgway's " drab." The distri- 

 bution and sharp definition of the upper and lower colours 

 quite as in leucodon. 



Skull with the characteristic flattened shape of the brain- 

 case found in true G. leucodon. 



Dimensions of the type (measured in the flesh) : — 



Head and body 72 mm. ; tail 35 ; hind foot 12 ; ear 8. 



Skull : condylo-basal length 19 ; basal length 17 ; greatest 

 breadth 9*2 ; height of brain-case from basion 4' 6 ; length 

 of upper tooth-series 9. 



Hab. and tyi^e as above. 



This pretty little shrew is readily distinguishable from the 

 European G. leucodon by its paler and more drabby colour. 

 From G. Guldenstaedii, Pall., it is at once separable by its 

 much shorter tail, as that species, with a trunk-measurement 

 of 72 mm., has a tail 47 mm. in length. 



Thanks to the kindness of Dr. Caraerano and Dr. Festa, of 

 the Turin Museum, I have been allowed the loan of the 

 typical specimens of de Filippi's Grocidura famigataf, and 

 find that that animal is also a longer-tailed form, the spirit- 

 specimen measuring 60 mm. for the head and body and 

 42 ram. for the talk All traces of the original colour have 



* Measured on skin. Mr. Woosnam writes 46, which is probably a 

 lapsus calami for 36. 



t Viaggio in Persia, p. 313 (1865). 



