64 FLORIDA GEOLOGICAL SURVEY—NINTH ANNUAL REPORT. 
MEASUREMENTS OF RADII OF CANIDAE. 
Fossil. 
Dog U. S. N. Mus. 
Coyote. 
6736 
21989 
1326 
Total length of bone _ _ _ 
113 
137 
155 
Greatest width near upper end 
- 14.3 
15 
16.1 
Thickness at right angles to above 
- 9.1 
11 
11.1 
Greater diameter at middle of length 
11 
■ 12 
12.5 
Diameter at right angles to above _ 
_ 6 
7-5 
7 
Greater diameter at distal end 
19 
20 
22 
Diameter at right angles to above-- - 
10 
11 -5 
12 
The fossil radius belonged to a canine animal whose foreleg 
was probably nearly three-fourths as long as that of the coyote and 
a little more than four-fifths the length of the leg of the domestic 
dog, No. 21989. 
The radius of the domestic dog 21989 is 3 mm. longer than its 
humerus; whereas, the radius No. 6736 is 20 mm. shorter than the 
humerus No. 6735. The radius must have belonged to an individ¬ 
ual about one-seventh smaller than that to which the humerus be¬ 
longed. It is the bone of a mature animal. 
The foreleg of this dog probably was slightly more than 15 
inches long, not including the scapula. 
LYNX RUFFUS FLORID ANUS (RAFINESQUE). 
Lynx sp. Sellards, E. H., 1916, Jour. Geology Vol. XX'V., p. 17; 8th Ann. 
Rep. Fla. Geol. Surv., pp. 152, 158, pi. XXVIII., fig. 3. 
A left mandibular ramus, No. 6739, from bed No. 3, Vero, 
appears to represent this subspecies. The angle and the articular 
process are missing. The canine and the third and fourth pre¬ 
molars and the first molar are present. The jaw and teeth are here 
compared with those of Lynx ruff us floridanus, No. 173028 of the 
United States National Museum, from Florida. 
