PLATE 10. 



SQUALIDAE. 



Fig. 1-4. Etmopterus hillianus (Page 224). Fig. 5-8. Centroscyllium fabricii (Page 231). 



1. Lateral view of a specimen 9j inches long. 



2. Teeth from the front end of the jaw. 



3. Head from below. 



4. Scales from near the middle of the flank. 



5. Lateral view. 



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



7. Head from below. 



8. Scales from near the middle of the flank. 



