U.S. NATIONAL MUSEUM 



BULLETIN 275. PLATE 7 



Vegetated dunes and sandy-clay hummocks supporting dense growths of Tamarix and 

 Calligonum surrounding Tazerbo Oasis, Cyrenaica. These peripheral zones are inhabited 

 by large numbers of jerboas (Jaculus jaculus) and gerbils {Gerbillus gerbillus), April 1962. 



w.-;-M 



Dense pocket of Phragmites growing in an area of abundant fresh water near the oasis of 

 Brach, Fezzan. A large series of Mus musculus was collected from the above habitat, 

 February 1962. 



