1905.] MAMMALS FROM PERSIA AND ARMENIA. 527 



one simple deep reentrant angle on each side, the pi-ojecting 

 angles bordering them in front and behind nearly equally salient ; 

 no trace of the secondary antero- external reentrant angle, which 

 in E. lutescens tends to divide into two the large antero- external 

 projecting angle ; posterior lobe diminished or absent. Last 

 lower molar with the anterior external reentrant angle about half 

 the depth of the posterior one ; in fuscocapillus it is quite as 

 deep as the posteiior one, while in talpimts it is almost non- 

 existent. 



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



Head and body 112 mm. ; tail 16 ; hind foot 23. 



Skull — greatest length 32 ; basilar length 29*2 ; zygomatic 

 breadth 24 ; nasals 8*8 x 3'5 ; palatilar length 19 ; diastema 12'5 ; 

 length of upper molar series (alveoli) 7 "4. 



Hah. as above. 



Tyj^e. Female. B.M. ISTo. 5.10.4.65. Original number 39. 

 Collected 9 May, 1905. 



" Trapped in corn-land m broad valley, near a stream. Plen- 

 tiful."—^. B. W. 



In colour this Ellohms has a close resemblance to the E. lutescens 

 of Lake "Van, but its teeth are of much simpler pattern, more 

 approaching those of E. tcdpinus. 



30. AliLACTAGA WILLIAMSI ThoS. 



cJ . 50. Lake Van. 



A topotype of this beautiful Jerboa, which was described 

 in 1897 from specimens presented to the British Museum by 

 Col, W. H. Williams, R.A. 



31. Lbpus craspedotis Blanf. 



d . 4. Karun R., N. of Ahwaz. 250'. 



2 . 6. Bunde Kil, Karun R. 250'. 



This appears to be the lowland coast representative of the 

 ordinary plateau Hare of Persia and Afghanistan, to which the 

 name of L. tibetanus should probably be applied. 



It is distinguished by its shorter fur, which is silveiy whitish 

 at base, with a broad black subterminal ring. In the highland 

 forms the part below the black ring is slaty basally, with a 

 creamy terminal half. 



The type was described from Pishin, S.W. Baluchistan, about 

 100 miles from the coast. 



EXPLANATION OF PLATE XVI. 



Calomi/scus bailwardi; natural size : p. 524. 



