,526 



PROCEEDINGS OF THE ACADEMY OF 



[1896. 



According to Giglioli," there were only four specimens of ioj^/tto- 

 mys known to have been taken, up to 1881 : 



1. Skin, skeleton and viscera (Aden, 18d6). Type in Paris Mu- 

 seum. 



2. Skull (Maman, 1867). Type of Phractomys cethiopicus Veters, 

 in Berlin Museum. 



3. Mounted skin and skeleton (Keren, Bogos 1870). In the Ge- 

 noa Civic Museum. 



4. Skin and skull (Erkanid near Suakin, 1881). In the Flor- 

 ence Zoological Museum. 



Dr. Smith's specimen appears to be the fifth. It is certainly the 

 first to reach an American museum. 



Compared with Milne-Edwards' illustrations'^ of the type of im- 

 hausi, the Smith specimen is somewhat younger and smaller, with 

 much shorter tail, though fully adult. The pelage is more worn or 

 naturally shorter than in the type, and consequently is appreciably 

 lighter colored throughout, owing to the more exposed bases of the 

 fur. The tail almost wholly lacks the white tip, and the head the 

 small white patch under eye, of imhausi. 



The most marked color difference in the Sheikh Huseiu example 

 is seen in the division of the white of upper head by a distinct black 

 band joining the dark area of occiput with that of the side of head 



"Zool. Anz.,IV, p. 45. 



i^\rcluv. du Mus., 1867, pi. VI and VII. 



