[ IJ 9 ] 
been obliterated by time. Thefe tubercles are of a 
fine fhining glofly black colour, and of a much clofer 
and harder fubftance than the bone from which they 
rile. 
Figure A reprefents one of thefe foffil bodies, whofe 
length from end to end is feven inches and a quarter ; 
on the fides from a to b its breadth is two inches. 
The width of that part where the teeth are placed 
at c about feven eighths of an inch ; but it gradually 
decreafes, as does likewife the breadth of the fides, 
towards the fmaller end, which was probably about 
an inch longer than it now appears, and terminated 
in a point. The tubercles are largeft in the broadeft 
part, and the farther they are from the teeth, near 
which they are fmall and flat : they likewife lefien 
towards the fmaller end, which is ridged for about 
an inch, and without any tubercles. 
The under-part of this body is placed uppermoft, 
for the fake of fhewing its teeth to the beft advantage. 
There are two rows, running longitudinally, on a 
little rifing in the middle, with no great regularity, 
and ending in one row of very fmall ones. The 
largeft are about a quarter of an inch in length, 
hooked, of a fhining black colour, having fill the 
natural polifh, and being extremely fharp and per- 
fect. The fides of this foffil have fwelled out, and 
been naturally more rounded than they are at pre- 
fent: for they plainly appear to have been cruffied 
and compreffied together by fome foreign force. 
B i, is a foffil body, ten inches in length, one 
part of which is rounded, and the oppofite part hol- 
lowed: this figure fhews the hollow part, which 
from a to b is more than one inch and half over ; the 
chanei 
