﻿MAMMALS FROM THE NILE DELTA REGION, EGYPT — SETZER 349 



from pinna, small and papillate in shape ; calcar about three-fourths 

 the length of the tibio-fibula. 



Measurements. — Averages and extremes of six males and nine fe- 

 males from the north base of Mt. Abu Kauwash were, respectively: 

 Total length 101 (99-102), 102.3 (101-106); length of tail 22.6 

 (22-23), 23.4 (22-26); length of forearm 64 (63-65), 64 (63-66); 

 length of hind foot 14 (14), 13.6 (13-15) ; length of ear from notch 

 17.3 (17-18), 17.5 (17-18) ; greatest length of skull 20.3 (20.1-20.6), 

 20.1 (19.8-20.3); basal length 19.4 (19.0-19.6), 19.2 (18.8-19.6); oc- 

 cipitonasal length 17.3 (17.2-17.3), 17.1 (16.9-17.4); greatest zygo- 

 matic breadth 11.7 (11.6-11.8), 11.6 (11.4-11.7) ; breadth of braincase 

 9.5 (9.3-9.7), 9.35 (9.0-9.5); canine to M^ 8.5 (8.5), 8.5 (8.4-8.6); 

 weight 24.0 (20-27) , 24.2 ( 16-28) . 



Remarks. — From the other bats available at this time from the 

 Cairo area, this species may be distinguished by its rather long, 

 pointed ears, the peculiar tuft of hair on the rather short, free tail, 

 by the white basal portion of the hairs, and by the long calcar which 

 supports the posterior edge of the uropatagium. 



LIPONYCTERIS NUDIVENTRIS (Cretzschmar) 



TapJiozous nudivcntris Ckktzschmar, in Riippell, Atlas zii der Reise im nordlichen 

 Afrika, p. 70, pi. 27b, 1828 (Egypt). 



Specimens examined. — Five. Giza Province: Abu Rauwash 

 (MVZ). 



Description. — Upper parts Hair Brown shading into Cinnamon- 

 Drab on the lower parts ; wings, uropatagium, feet and ears, blackish ; 

 muzzle, chin, rUmp, under surfaces of femora, uropatagium, ears and 

 wing membranes, naked, with the exception of a narrow strip of 

 whitish hairs running the entire length of the membrane on the under- 

 side of the forearm. Tragus large and truncate ; tail about one-fourth 

 of total length, free from uropatagium for about one-half its length, 

 sparsely covered with long whitish hairs. 



Measurements. — Averages and extremes of three males from Abu 

 Eauwash were : Total length 124 (121-126) ; length of tail 30 (28-32) 

 length of hind foot 18 (18) ; greatest length of skull 28.2 (26.8-29.6) 

 basal length 21.6 (21.4-21.8) ; occipitonasal length 24.4 (24.0-24.8) 

 greatest zygomatic breadth 16.2 (15.8-16.7) ; breadth of braincase 11.2 

 (11.0-11.3) ; length of tooth row from M* to canine 11.3 (11.0-11.5) . 



Remarhs. — This bat may be told from a close relative living in the 

 same area, Taphozous perforatus., by the bare rump, the bare under- 

 side of the femora and the much larger skull. 



It is interesting that in 1924 Miss Alexander obtained only Lipony- 

 cteris nudivcntris at Abu Rauwash and in 1946 Tomich obtained only 

 the closely allied Taphozous perforatus. 



