250 MESSRS. OLDFIELD THOMAS AND M. A, C. HINTON ON 



broadly rounded tip and parallel borders; the inner border the 

 longer. Eorearm not exceeding 28 mm. (29"8 in desertt). 



Apart from its slightly smaller size, the skull agrees with that 

 of F. deserti. The outer upper incisor and the small upper 

 premolar ])' appear to be a little more reduced than in deserti, 

 but the available material shows a rather Avide I'ange of variation 

 in these respects. In the type-skull r is both absolutely and 

 relatively much smaller than in the only knoAvn skull of deserti ; 

 and the point of the tooth does not rise above the cingulum of i\ 

 The small premolar is also greatly reduced, and so crovv'ded 

 between the canine and j(/ that it is not easy to detect. But in 

 the fragments, all that is left of the two other skulls from Jebel 

 Marra, the teeth in question, though rather smaller than in 

 deserti, are considerably larger than in the type. 



Dimensions of the type : — 



Head and body 37 mm.; tail 21; hind foot 5-5; ear 12. 

 Forearm 26"5 ; third finger 46 (m.c. 24"5 ; phalanges 8'7 — 

 7' 5 — 5* 5) ; lower leg and hind foot (c.u.) 14*5. 



Skull : greatest length 11*2 ; median length above 9*6 ; median 

 length below 8'1 ; interorbital breadth 4'3 ; intertemporal 

 breadth 3'4 ; breadth of brain-case 6"7 ; canine to m^ 3'8. 



Hah. Foot-hills, S. Jebel Marra ; altitude 4000'. 



Type. Adult male. B.M. No. 23. 1. 1. 15. Original No. 633. 

 Collected April 3, 1921. 



This interesting little bat is, no doubt, closely related to 

 P. deserti, described from Tripoli. Its smaller size, darker colour, 

 shorter tragus, and possibly more reduced dentition seem to 

 warrant its receiving distinct specific rather than subspecific 

 rank. The individual variation noticed in the dentition is of 

 some interest in a group in which, normally, even minute dental 

 characters are surprisingly constant. 



Both marrensis and deserti are apparently closely allied to 

 P. kuhli ; and we can see no good reason for placing them in the 

 genus Scotozous {cf. Miller, Fam. & Gen. Bats, p. 206, 1907). 



9. ScoTOPHiLUS NiGRiTA Sclireb. 



d . 401. 60 miles W. of El Obeid. 



6 . 639. 2 . 660, 662. Foot-hills, S. Jebel Marra. 4000'. 



$. 734, 735, 738, 743, 744, 745, 746, 748, 749. Zalingei. 

 2800'. 



At Zalingei : " Very common around swampy ground " in 

 May 1921. In a note dated Oct. 27, Mr. Lowe says "I believe 

 all these bats are migratory, as I have not seen any since the last 

 obtained" (Zalingei, May 31). 



10. SCOTEINUS SCHLIEFFENI Pet. 



rf . 411. 70 miles W. of Nahud, Kordofan. 



6 . 1187, 1188. $ . 1186. 35 miles E. of Nahud. 



c7 . 1197. 50 miles W. of El Obeid. 



