308 
THE IGUANODON 
about four times the size of the clavicle of the 
recent species. 
Under this head it is iny intention to notice 
a bone of so singular a form, that even M. Cuvier 
declared it was the most extraordinary that he had 
ever seen, and that lie was utterly at a loss as to 
what animal, and even as to what place in the 
skeleton, it should be assigned. “ It might be a 
clavicle ; but if it were, it did not resemble that 
of a reptile, nor indeed of any other living crea- 
ture.” The bone figured and described by Ur. 
Buckland as a clavicle (in the memoir on the 
Megalosaurus, to which reference has already been 
made,) appears to approximate to it; but it is 
broken at its widest extremity, so as to admit the 
possibility of a difference in the form of the apo- 
physes. One of my specimens is entire, and two 
views of it are given, PI. IV. fig. 1,2.; it is 28 inches 
long ; several fragments of other similar bones have 
been collected, and I have a portion of one that is 
one third larger, and if perfect would be 35 indies 
in lengtli. Dr. Buckland’s specimen is 21^ inches 
long, and if admitted to be the clavicle of a lizard, 
indicates a total length of 55 feet for tlie original 
animal ; the large fragment in my jiossession must, 
therefore, according to sucli calculation, have be- 
longed to an individual 80 feet long. To point out 
in a still more striking manner tlie extraordinary 
anomalies which this fossil bone exhibits, I may 
mention that our first conpiarative anatomist, Mr. 
Clift, among all the osteological treasures wJiich 
the museum of the College of Surgeons places at 
his command, could discover no bone at all ap- 
