Memoirs Carnegie Museum, Vol. VII. 



Plate XLVIII 





V 



"T'SSFSi^ 





;;^:^ 



/.... 





JJ"^-^ jip. ii»*l.»«*e' >^ v <»- , « g , 



:f**T^T37Sr 



'/i in. 



'/■t >n. 



Pygidium. 

 (For detailed explanation see opposite page.) 



