212 



NORTH AMERICAN FAUNA 74 



2 



a. 



CO 



< 

 CO 



J) 

 3 



CS 



c .S t: ^ 



o <v '' — ■ 



57 r a o 



g -9 S -5 



8 S 8 



^ X! 

 3 3 



5 -2 



O 3 



coco^ior^ocgot^TrioiococoocTTcoioio 



lO 'sf 05 05 



<^ J. lO 



CM C<l 



