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KANSAS UNIVERSITY SCIENCE BULLETIN. 



Fig. 4. Caudal view 

 of the right man- 

 dible of Xiphac- 

 tinus, X ^A- 



Fig. 5. Cephalic view of the pectoral 

 girdle of Xiphactinus, X '4 . 



Fig. 6. Mesial view of the left supra- 

 clavicle of Xiphnrlimin attached to 

 the clavicle, which is interpo-^i'd 

 between it and the mesocoracoid, 

 X %. 



Fig. 7. Proximal ends of fin-rays of Xiphactinus, 

 showing their articulations with the girdle 

 and baseosts, X %. 



