PLATE 16. 



RHINIDAE and PRISTIDAE. 



Fig. 1-4. Rhina californica (Page 253). Fig. 5-7. Pristis clavata (Page 263). 



1. Dorsal view of a specimen 12| inches long. 



2. Frontal view of the head. 



3. Teeth. 



4. Scales from the middle of the body. 



5. Dorsal view of a specimen 24t inches long. 



6. Forward teeth. 



7. Scales from near the middle of the body. 



