﻿350 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 102 



Family RHINOLOPHIDAE 



RHINOLOPHUS ACROTIS Heuglin 



Rhinolophus acrotis Heuglin, Nov. Act. Acad. Caesareae Leopoldino Carolinae, 

 Halle, vol. 29, pp. 4, 10, December 1861 (Keren, Eritrea, about lat. ISMS' 

 N., long. 38°30' E. Type: Adult male, labeled No. 986, Stuttgart Museum). 



SpecimeTis examined. — Four. Giza Province: Pyramids of Giza. 



Description. — Upper parts Drab, imderparts and base of hairs of 

 upper parts Pale Drab-Gray; membranes of wing and uropatagium 

 blackish brown ; ears moderately large, rather acutely pointed, naked 

 except at base and basal half of medial margin, tragus but a small 

 rounded projection; noseleaf large, horseshoe shaped, dorsal projec- 

 tion free and rather small ; face and muzzle fully haired ; wings and 

 uropatagium naked; tail, enclosed in uropatagium for its entire 

 length, about half the length of the head and body. 



Measurements. — Average and extremes of three males from the 

 Pyramids of Giza were: Total length 85.0 (84-87) ; length of tail 28 

 (24-33) ; length of forearm 45.6 (45-47) ; length of hind foot 10.3 

 (9-11) ; length of ear from notch 19.3 (19-20) ; greatest length of 

 skull 19.6 (19.5-19.7); basal length 15.6 (15.4-15.8); occipitonasal 

 length 14.23 (14.2-14.3) ; zygomatic breadth 9.7 (9.6-9.8) ; breadth of 

 braincase 8.7 (8.5-8.9) ; canine to M^ 7.0 (7.0) ; weight of two indi- 

 viduals 8.0 (8.0). 



Remarks. — The two species of Rhinolophus supposedly occurring in 

 the Cairo area are represented here by only Rhinolophus acrotis. This 

 species is apparently much the same in size and dorsal coloration as 

 Rhinolophus euryale. The two species can be distinguished by the 

 light belly and rounded dorsal projection of the basioccipital in R. 

 acrotis and the dark belly and pointed basioccipital in R. euryale. 



Family HIPPOSIDERIDAE 



ASELLIA TRIDENS (E. Geofifroy St.-Hilaire) 



Rhinolophus tridens E. Geoffeoy St. Hilaire, Ann. Mus. Nat. Hist. Natur., Paris, 

 vol. 20, p. 265, 1813 (Egypt). 



Specimens examined. — Fifty. Lisht, Upper Egypt, 32 (alcoholic). 

 El Maabdeh Cave, 1 (alcoholic). Oasis of Kharga, 12 (alcoholic). 

 Henneh, 1. Nile, 4 (alcoholic). 



Description. — Since only one conventional skin and skull combina- 

 tion is available, and that old and faded, an exact color diagnosis is 

 not possible. Based on the one specimen, the color appears to 

 have been light brown above and paler below ; wing membranes and 

 uropatagium dark brown. Nose with prominent "horseshoe" with 

 trilobed leaf on dorsal surface ; ears large, connected by narrow band 



