PLATE 10. 



SQUALIDAE. 



Fig. 1-4. Etmoptercs HiLLiANUS (Page 224). Fig. 5-8. Centroscyli.ium fabricii (Pago 2.31). 



Lateral view of a specimen 9j inches long. 



Teeth from the front end of the jaw. 



Head from below. 



Scales from near the middle of the flank. 



Lateral view. 



Teeth from near the front end of the jaw. 



Head from below. 



Scales from near the middle of the flank. 



