62 FLORIDA GEOLOGICAL SURVEY-NINTH ANNUAL REPORT. 
MEASUREMENTS OF FEMORA IN MILLIMETERS. 
Fossil 
Red Fo: 
x Coyote 
6796 
7550 
1326 
Length of shaft __ 
117.0 
96.0 
120.0 
Total length of femora (6796 estimated) 
161.0 
132.0 
166.0 
Greatest diameter just below lesser trochanter 
12.0 
13.0 
17.0 
Least diameter just below lesser trochanter_ 
8.0 
9.0 
12.0 
Greatest diameter at middle of shaft_ 
10.5 
9.0 
12.2 
Least diameter at middle of shaft _ 
8.2 
7.2 
10.0 
Side-to-side diameter at lower epiphysial suture 
12.0 
12.0 
15.0 
Fore-and-aft diameter at lower epiphysial suture 
11.0 
11.0 
13-5 
The fossil femur was larger than 
that of 
the red 
fox; also 
straighter and more flattened anteroposteriorly. 
The same differ- 
cnees in form are seen on comparison with the femur of the coyote. 
In the fossil femur the outer border is not so sharp as in the reel 
fox, while the inner border of the lower half is flatter. The shaft 
is more compressed than in either the red fox or the coyote. The 
bone is referred provisionally to Canis riviveronis. 
Doctor Sellards has written that the fragment of humerus was 
found in No. 3, 475 feet west of the railroad bridge. The femur 
was found the same day 5 feet nearer the bridge in the same deposit. 
The jaw forming the type of C. riviveronis was found on the north 
bank 450 feet from the bridge. 
CANIS, SPECIES UNDETERMINED. 
From stratum No. 3, at Vero, Sellards (8th Ann. Rep. Fla. 
Geol. Surv., p. 157, pi. XXVIII., figs. 7, 8) described and figured 
a humerus and a radius of a dog; and these he referred with doubt 
to Canis latrans. Both bones were found 450 feet west of the rail¬ 
road bridge. One might therefore suppose that they had belonged 
to the same individual dog; but the radius seems to be too short for 
this. Herewith is presented a table in which corresponding meas¬ 
urements of the humeri of the fossil dog, of a domestic dog, of a 
coyote, and of a red fox, are given. 
