NEW OR LITTLE-KNOWN' BATS 



179 



The specimen from Assab agrees in every respect with the 

 type of Rh. acroiis, from Keren. 



3 Ì3. Rliiuoloplius acrotis lbracli.yg"iiatliu!-}, K. And. 



1902. Rhinolophus antinorii (non Dobson), Anderson & do Winton, 

 Zoology of Egypt, Mamm , p. 96, pi. XVI. fig. 2. 



1905. Rhinolophus aci'otis hrachijgnathus ^ Knud Andersen, Ann. & xMag. 

 Nat. Hist. (7) XV. p. 73 (Jan. 2, 1905). 



cT ad., in alcohol. Korosko, Upper Egypt. Collected by iSIessedaglia Bey. 



Presented to the British Museum by Marquis Doria (no. 5. 12. 15. 3). 

 d" ad., in alcohol. Cairo. Collected by Panceri and Casco. Museo Civico, 



Genoa. 



3 cf ad.; in alcohol. Province of Giza, Lower Egypt. From the collections 

 of Dr. J. Anderson and Capt. S. S. Flower. British Museum (nos. 

 92. 9. 9. 7 (type of brachijgnathus) , 5. 8. 8. 4-5). 



Q imm.; skin. Giza, Lower Egypt. Collected by A. L. Butler, Esq. British 

 Museum (no. 4. 7. 8. 1). 



Rii. aci'otis brachygnathus was hitherto known only from 

 tlie Province of Giza, Lower Egypt. The example from Korosko 

 presented to the British Museum by Manjuis Doria is of s})ecial 

 interest as showing the range of this form to extend up the Nile 

 Valley almost as far as the Nuljian frontier. 



The geogi^aphical races of Rh, acrotis, — Rh. acì^otis 

 brachygjiaihus differs from the typical form of the species in the 

 following particulars : — 



The skull is distinctly slenderer; the nasal swellings narrower. 

 The teeth are slightly smaller, and, in conformance with this, the 

 mandiljle shorter, the maxillary w4dth (across the antero-external 

 corners of m^) smaller. The horse-shoe and sella seem to average 

 a little narrower. — Up to the moment of w^'iting this I have 

 not seen any example intermediate between brachygnathus and 

 the typical acrotis. 



Rh, acroiis typicus is an inhabitant of Erythrea, Rli. a. 

 brachygnathus of the Nile Valley, from Korosko to Cairo. 



Rli. acrotis andersoni ('), from the Eastern Egyptian Desert 



(}) Rhinolophus aiidersoni, Oldfleld Thomas, Anu. & Mag. Nat. Hist. (7) XlV. p. 

 156 (Aug. 1, 190i). — RhinolopJiiis acrotis andcrsoni, Knud Andersen, t. c. p. 454 (Dec. 

 1, 1904); id., op. cit. (7j XV. p. 73 (Jan. 2, 1905); id., op. cit. (7) XVI. p. 649 (Dec. 1, 1905). 



