J. Wyman on the existence of a Crocodile in Florida. 105 
Art. XVI.—On the existence of a Crocodile in Florida ; by 
JEFFRIES WYMAN, M.D. 
Ir has been shown by different paleontologists, especially by 
Dr. Leidy and Prof. Cope, that several species of Crocotiitiaiks 
existed in North America during the Cretaceous and Miocene 
eriods, all of which became extinct. At the present time two 
record of the presence of either of them within the limits of 
the United States, the Alligator being the only representative 
of the family to which it belongs. 
hile a guest of J. M. Forbes, Esq., on board the yacht 
Azalea, I had an opportunity of visiting Key Biscayne Bay 
in March, 1869, and while there Mr. William H. Hunt, of Miami, 
presented me the cranium here described. The animal to 
which it belonged, as I was told by the person who killed it, 
was shot near the mouth of the Miami river, which opens into 
the above mentioned bay. I was also informed that another 
had been killed in the same neighborhood. 
The length of the head (from the alveoli of the incisors to 
the end of the occipital condyle) is 462™™, and the greatest 
breadth 191™™, The whole number of teeth is 68, viz: 42=12; 
in the upper jaw the 4th and 10th, and in the lower the 4th 
and 11th are the longest. The first 12 teeth above and the first 
11 below have the enamel fluted, and in both jaws the teeth 
hi grooves. 
When compared with a somewhat larger head of the @. acutus 
from South America (length 462m, breadth 211™™), the Flor- 
m imen closely agrees with it in the above as well as 
1-000, and the measurements are in fractions of the length. 
pony prditeenge tans op ca oo 
sor fear rar acai I oom bos 
th es aw 03800 z 
Breadth aa ein “tig 2. 0-162 0-169 
Tisadih ai se, sapere ere 0-235 
en WO ith 0-218 = 
th at contraction behind 5th tooth dade - 3 123 _ 
th at ee d 12th Se ee cee 0 190 0 210 
