PLATE XLII. 



PAGE. 



FigS. 1-2. TlTANICHTHYS ATTENUATUS, Sp. n 612 



1. Side-view of mandible. 



2. Top view of mandible with sectional views. 



Fig. 3. TlTANICHTHYS Clarki, 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. 

 Fig. 4. TlTANICHTHYS AGASSIZI, Nby 613 



Fig. 5. TlTANICHTHYS RECTUS, Sp. H.., .' 



