PLATE 5. 



GALEORHINIDAE and ISURIDAE. 



Fig. 1-4. Tri.\ki.s HENLEi (Page 168). Fig. 5-9. Carciiahodon cabcharias (Page 32). 



1. Lateral view of a specimen 25^ inches long. 



2. Teeth from near the front end of the jaw. 



3. Head from below. 



4. Scales from near the middle of the flauk. 



5. Lateral view. 



6. Teeth from near the front end of the jaw. 



7. Nostril. 



8. Head from below. 



9. Scales from near the middle of the flank. 



