RODENTS OF LIBYA 



S3 



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31 



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* 



* 



* 

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** 

 * 



#* 



O 



oo 

 o 



ooo 



ooopo 



o 



O Gerbillus amoenus 

 * Gerbillus campestris 



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LENGTH OF AUDITORY BULLA 



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Figure IS.— Comparison of length of auditory bulla relative to occipitonasal length of 

 Gerbillus amoenus and Gerbillus campestris. 



