Mammals from the. Ei^lera D^aerl of Ejypt. l.')7 



Dimensions of tlio type (measured in tlie flesli) : — 



Foiearm 1(5 nun. 



Head and body 53; tail 28; ear ii. 



Skull: front of canine to occiput 10; length in middle, 

 line IG; front of bony palate to basion 12 5; breadth of 

 palate across vr 7*5 ; tip of Ujiper cnnine to tip of large pre- 

 molar I'G ; front of lower canine to back of m^ 8'^). 



Ti/pe. Male. Original number 2(5. Captured iJrd August, 

 1903. Four specimens. 



"Arabic name * Wat-wat ' ; Bisliarin name ' numu-h- 

 Kilite/"— .4. }[. }f. 



In the liritish ]\[useum collection there is already a spirit- 

 specimen of this bat, obtaiufnl by Dr. J. Anderson at Gizeli. 

 This is the 11. Antinorii of that naturalist's ' ]\Iammals of 

 Egypt,' a note being appended by ^Ir. de Winton drawing 

 attention to its possible identity with R. cUvosus. It is 

 certainly not R. Antinorii, which is larger in all ways and 

 has especially a much larger nose-leaf, the horseshoe of whicli 

 nearly covers the muzzle. 



AVith JR. ch'vosun it has no doubt a nearer affinity, but 

 seems to differ sufficiently by its different colour and the 

 constant absence of the minute premolars to be recognized as 

 a distinct species. I have also ventured to distinguish the 

 Kordofan bat described by Dobson under the name of 

 R. clivosus, as it has the small premolars quite separating 

 the canines from the large premolars. 



Whether the queer greenish colour of the two specimens of 

 R. Dohsoni (" sulphur-brown above, beneath canary-colour/' 

 Dobson) is natural or the result of defective preservation can 

 only be determined when further examples are obtained. 



ripistre.llus ariel, sp. n. 



A pigmy species of a very pale colour. 



Size very small, not exceeding that of P. nanus; form 

 slcndc-r, limb-bones unusually light and delicate. Fur long, 

 but not dense ; hairs of back rather over 7 mm. in length. 

 General colour above j)ale buffy, the slaty bases of the hairs 

 showing through ; below similar, but slightly paler. Mem- 

 branes pale brown, without lighter edging ; naketl throughout, 

 except quite close to the V)ody. Ears rather short ; inner 

 margin strongly convex below, with very small basal lobulo, 

 slightly convex above ; tip rounded off; outer margin conve.x', 

 slightly above, strongly below, with a long, low, roundetl 

 antitragal lobe. Tragus rather short, broadest rather above 

 its inner base, iimer margin straight, tip rounded, outer 

 margin evenly convex ; basal lobule distinct, rounded. 



