﻿MAMMALS FROM THE NILE DELTA REGION, EGYPT SETZER 351 



across top of head ; no tragus appears on either dry or alcoholic speci- 

 mens; tail for three-fourths of its length enclosed in uropatagiuni, 

 other one- fourth free. 



Measurements. — No skin measurements were available, but average 

 and extreme skull measurements from five females from Lisht, Upper 

 Egypt, were: Greatest length 18.0 (17.8-18.2); basal length 16.1 

 (15.6-16.6) ; occipitonasal length 14.3 (13.6-14.5) ; zygomatic breadth 

 10.0 (9.9-10.1) ; width of braincase 8.35 (8.3-8.5) ; canine to M^ 6.5 

 (6.5). 



Remarks. — Presumably this bat is not to be found in the lower Nile 

 region, since all records thus far have come from no farther north than 

 Saqqara, Giza Province. 



Family VESPERTILIONIDAE 



PIPISTRELLUS KUHLII (Natterer) 



Vespertilio kuh lit Nattiieee, in Kuhl, Die Deutschen Fledermiiuse. Ann. Wetterau. 

 Gesel. Hanau, vol. 4, p. 199, 1817 (Trieste). 



Specimens examined. — Seven. Giza Province: 5 miles west of 

 Simbillawein, 6 ; Maadi, 1. 



Description. — Hairs of upper parts tipped with Buffy Brown, black 

 at bases ; underparts lighter than back ; wing membranes, in dry speci- 

 mens, dark brown, uropatagium lighter and strongly veined ; posterior 

 margins of wings and uropatagium bordered with white ; ears small, 

 brownish and naked; tragus large; base of uropatagium furred; 

 calcar keeled. 



Measurements. — Averages and extremes of five females from 5 miles 

 west of Simbillawein and measurements of one male from the same 

 locality are respectively : Total length, 87.2 (84-92) , 89 ; length of tail 

 35.8 (32-37), 37; length of forearm 35.5 (35-36), 35; length of hind 

 foot 8.5 (8-9) , 8 ; length of ear from notch 12 (12) , 12 ; greatest length 

 of skull, 13.4 (13.2-13.6), 13.4; basal length 12.9 (12.7-13.2), 13.0; 

 occipitonasal length 11.2 (11.1-11.3) , 11.2 ; zygomatic breadth 8.4 (8.3- 

 8.6) , 8.5 ; breadth of braincase 6.6 (6.5-6.7) , 6.6 ; canine to M^ 4.9 (4.9), 

 4.9 ; weight 4.25 (4.0-5.0) , 5.0. 



Remarks. — The series of bats available for study are remarkably 

 uniform in color, in the whitish margins of the wings and uropatagia, 

 as well as in the measurements of the skull. In one character of the 

 skull, however, there is some variation that is rather peculiar. The 

 first premolar on one side of the upper jaw is missing in two specimens. 

 The tooth is extremely reduced in size in any event and even under high 

 magnification no alveolus can be ascertained where the tooth is sup- 

 posed to be in those specimens where the tooth is missing. 



These two specimens present a condition that appears to tend toward 

 the reduced dentition of Scotozous. 



967605—52 2 



