136 



THE AMERICAN NATURALIST [Vol. XLVIII 



TABLE IILB 

 (Data as above) 

 (Data as in Table III A) 







Group 



(2,^00Sq. 11.) 





s R q a T) 







Gen. 







Sp. 









2 





3 



7 



4 



~o~ 



Bovid* 





1 



1 





















? 



AntUotprid. 











1 





Rodentia 



5 





28 



110 









7 





26 



7 



41 



CMtorid* 















5 



14 



10 



33 



i! 



04 



Geomyid* 

















3 





1 



24 



{ 



48 



Erethizontidse 



Ochotonidse 









1 











10 



2 

 15 



11 



» 



3 



18 

 51 



Felidse 





2 







Canidffi 



J 











17 















22 



ffi 







2 



3 









3 





5 







20 



Soricidse 



Talpidse 



1 



2 









14 



Phyllostomidae 



4 





7 



12 

 11 



11 



1 



8 



26 



1 



21 



Moloasidffi 







1 

























63 



58 



170 



68 



310 



Indices of modifi- 



1.85 



2.03 



4.56 



considered to be individual faunal units. The San Jacin- 

 tos are somewhat smaller than the San Bernardinos, but 

 the difference is almost inconsiderable when compared 

 with the Sierras. Before examining the table, let us see 



