526 MR. OLDFIELD THOMAS ON [ Dec. 12, 
Mouse preserved in the mountains of Persia, closely allied to the 
N. American Peromyscus, and widely different from any of the 
Asiatic Muride hitherto known. 
T have named this striking novelty in honour of Col. Bailward, 
to whose generosity the Museum is indebted for the interesting 
collection of which it forms a part. 
22. CricreruLus pHzuS Pall. 
$. 46. Sakiz, N.W. of Karmanshah. 5000. 
9. 54. Tortoum R., 60 mi. N. of Erzeroum. 4000. 
3. 58. Baibort, Choruk River, between Erzeroum and Tre- 
bizond. 5500". 
“Trapped among the corn-lands.”—R. B. W. 
93. MIcROTUS NIVALIS Mart. 
3g. 62. 25 miles N. of Baibort. 7000’. 
24-27, Microrus spp. 
g. 40. Derbend, 60 mi. W. of Isfahan. 6500’. 
2. 44. Diwan-Déré, 150 mi. N.W. of Kermanshah. 6500’. 
@. 57. Axvab-Keni, 60 mi. N. of Erzeroum. 9000’. 
©. 59. Baibort. 5000’. 
2. 63. 70 mi. N. of Baibort. 7000’. 
These five Voles belong to at least four species. 
28, ELLOBIUS LUTESCENS Thos. 
6. 51. Lake Van. 5000. 
Topotype. Quite similar to the original specimens. 
299. ELLOBIUS WOOSNAMI Thos. 
Abstr. P. Z. 8. No. 24, p. 23, Dec. 19, 1905. 
3. 38. @. 39. Dumbeneh, 50 miles N. of Isfahan. 7000’. 
Colour much as in Z. lutescens. Teeth of much simpler pattern. 
Fur soft and loose in texture; hairs of back about 9 mm. in 
length. General colour above dull greyish buffy, the hairs slaty 
grey, with dull buffy tips. Sides paler greyish, not more strongly 
buffy as is the case in L. talpinus. Head blackish above, con- 
trasting markedly with the general colour, much more so than in 
E. lutescens. Under surface similar to sides, the tips of the hairs 
very pale buffy. 
Skull rather more heavily built than in /.lutescens. Zygomata 
not so expanded vertically in the centre as in lutescens and fusco- 
capillus, its greatest vertical breadth 3 mm. or less. 
Teeth of a more simple type than those of H. lutescens and 
fuscocapillus, and nearly corresponding with those of fig. 6 of 
Biichner’s plate * of Hllobius teeth. The last upper molar with 
* Mamm. Przewalsk. pl. xv. (1889). 
