1905.] MAMMALS FROM PERSIA AND ARMENIA. 521 



they represent a valid lighter-coloured Eastern subspecies, for 

 which there appear to be several names available. 



" Shot close to the town of Ahwaz — their fur matches the soil 

 in colour."— i?. B. W. 



4. PiPISTRELLUS ALADDIN ThoS. 



Abstr. P.Z. S. No. 24, p. 23, Dec. 19, 1905. 



S. 41. Derbent, 50 mi. W. of Isfahan. 6500'. B.M. 

 No. 5.10.4.13. Ty2M. 



A very small species. The minute upper premolar in the 

 tooth-row. 



Size about as in P. nanus and mimus. Ears of medium size ; 

 inner margin slightly convex, outer margin with a well-marked 

 concavity in its middle third ; antitragal notch shallow, the outer 

 basal lobe low, buried in the fur. Tragus of medium length, 

 rather broad, its broadest point just above its inner base ; inner 

 margin slightly concave ; outer basal lobe rounded. Wings to the 

 base of the toe. 



General colour above " wood-brown," the hidden basal halves 

 of the hairs blackish. Under surface similar, but rather lighter. 

 Ears and wing-membranes blackish grey, the hinder edge of the 

 wing from the tip of the fifth finger backwards prominently 

 white, as in P. kuhlii. 



Skull small, delicate ; much as in P. nanus. Outer upper 

 incisors about equalling the well-marked secondary cusp of the 

 inner. Large premolar well separated from the canine, the small 

 premolar standing in the tooth-row, wholly visible from without. 



Dimensions of the type : — 



Forearm 31 mm. 



Head and body (in flesh) 41 ; tail 35 ; ear 10. 



Skull — greatest length 11*3 ; basal length in middle line 8*7 ; 

 breadth of brain-case 6"1 ; palatal length 4; combined length of 

 large upper premolar and two molars 2'8 ; lower tooth-row from 

 front of canine 4' 2. 



Hah. and Type as above. 



This little Bat is perhaps a, representative of the Indian 

 P. mimus Wrought.*, with which it agrees in size and certain 

 other characters. But it is much lighter in colour, the extreme 

 tips of the dorsal hairs in that animal being alone pale brown 

 the rest being blackish, and the small upper premolar does not 

 stand so well in the tooth-row, although more so than in most 

 species of the genus. P. nanus again is a dark-coloured bat, as 

 dark as a European Pipistrelle. 



5. Myotis myotis omari, subsp. n. 



S . 42, 43. Derbent, 50 mi. W. of Isfahan. 6500'. 



(5 . No. 13. Near Telespid, S.W. Persia. H. F. Witherby. 



Essential characters as in true myotis, the ears apparently 



* Jovirn. Bombay Nat. Hist. Soc. 1899, p. 722. 



35* 



