72 
ItAMMER-HEAD. 
two in tlie lower; the teeth sharp, the points inclined towards 
the angle of the mouth, and serrated below on the concave 
edge. The first dorsal fin sixteen inches long, but a little way 
behind the pectorals. Pectorals eighteen inches long. The 
second dorsal and anal opposite each other, and far behind; 
both dorsals and anal lengthened out posteriorly; a depression 
at the upper root of the tail. Upper lobe of the tail three 
feet long, under lobe sixteen inches. The colour brown on 
the back, lighter below. 
TEETH OE HAMMER-HEAD. 
J. — Front teeth. 
2. — Side tooth above. 
3.— Side tooth below. 
