PLATE XLII. 



PAGE. 



FigS. 1-2. TlTANICHTHYS ATTENUATES, sp. n 612 



1. Side view of mandible. 



2. Top view of mandible with sectional views. 



Fig. 3. Titanichthys Ci,arki, Nby : 611 



3 Showing dentition as explained in text. The front tooth in the fossil fitted close 

 to the others and should be so represented. 



FigJ 4. Titanichthys Agassizi, Nby 613 



Fig. 5. Titanichthys rectus, sp. n 



