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three inches ; largest oncümibune of the sclerotic 
coat, when removed from the socket, eight and a half 
inches. Eyes very moveable in their orbits ; distance - 
between the eyes, two feet; distance between the 
tip of the jaws, as artificially raised, two feet ; this 
vertical gap is undoubtedly as much again, a£ least, 
in the living fish, which gives us an opening of four 
feet. Mouth white, mottled with fuliginous. Jaws, 
furnished with a great number of small, incurved, 
pointed teeth. Six rows of these in the upper jaw, 
and seven rows in the lower jaw ; the inner row in 
this jaw, are hardly formed ; each of the rows in this 
jaw, as I counted them in the mouth, contained one 
hundred teeth, from the tip of the jaw to the angle 
ofthe jaw, or two hundred, as counted from one 
angle to the opposite one, or in a word, fourteen hun- 
dred teeth in this jaw. The teeth are conical, sharp, 
polished, with a sengible ridge upon each side, often 
roughened, almost serrated ; the lower portion of the 
tooth, striated ; one of the teeth in this jaw is bifid ; 
the teeth at the angles of the jaws, short and more 
compressed. "The teeth in the centre of the jaw, are 
three lines high above the jaw, and their base, or 
root, about the same length within the socket. 
T'emporal oriodtgl foni, just back of the angle of 
the jaw. 
From the tip of the snout to the first branchia, 
four feet nine inches. Five very large branchiæ, 
nearly surrounding the head, as the animal was 
lying ; by measurement, the first pair of branchiæ 
were separated, on the neck, from each other, six 
inches; L3 second pair were separated, at the same 
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