U.S. NATIONAL MUSEUM 



BULLETIN 275. PLATE 5 



Bir bu Zarregh located near the "Cufra Track" in the desolate Sand Sea of Calanscio, 

 Cyrenaica. Vegetation at this remote site consists of only three stunted date palms, a 

 castor bean tree, and a eucalyptus tree. In spite of the isolated location of Bir bu Zarregh, 

 jerboas (Jaculus jaculus) and gerbils (Gerbillus gerbillus) were found to occur there, 

 March 1962. 



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Mounds of the mole-rat (Spalax ehrenbergi) on rocky slope north of El Faidia near the 

 highest point of the Cyrenaican Plateau, May 1962. 



