PLATE 47. 



CENTRACIONTIDAE. "' 



Fig. 1-3. Centracion qtjoyi (Page 187). Fig. 4-6. Centracion philippi (Page 182). 



1. Lateral view of jaws and teeth. 



2. Upper teeth and jaw.s from below. 



3. Lower teeth and jaws from above. 



4. Lateral view of jaws and teeth. 



5. Upper teeth and jaw.s from below. 



6. Lower teeth and jaws from above. 



The ridges on the molars of younger specimens become less prominent with age and use. The 

 harder the food in particular localities the more faint the ridges appear. 



