282 



CBANIAL OSTEOLOGY OF THE OSTEOOLOSSID^. 



Fig. 12. Arapaima gigas. 

 13. 



14. „ 

 15. 

 16 



Plate 32. 



Dorsal view of cx'anium. 

 Side view of cranium. 

 Back view of cranium, j 

 Eight side of skull. 



Hyopalatine arch of left side, with preopercular 

 bone and mandible, mesial aspect. 



Abbreuiatiovs e^tiployecl in the Figures. 



