154 FLORIDA GEOLOGICAL SURVEY-EIGHTH ANNUAL REPORT. 
is very small or lacking. The premolars and the first molar teeth 
are approximately of the same size and are closely similar in struc¬ 
ture to those of the California wolf. The deuterocone of Pm 4 is 
much reduced. The hypocone of M 1 is reduced; a metaconule is 
present while a protoconule is scarcely to be distinguished. As a 
rule the premolar teeth of the California wolf are more closely 
crowded in the jaw than are those of the Florida wolf. This, 
however, is not invariable as some of the large individuals of the 
California wolf have the premolar teeth well spaced. 
The limb bones of the Florida wolf are scarcely to be dis¬ 
tinguished from those of the California wolf, and until the skull 
was found it was not known that the species were distinct. A fe¬ 
mur of the Florida wolf measures in length 225 mm.; and ulna, 
277 mm.; a tibia, 248 mm. With the exception of the ulna which 
is unusually long, the bones, as indicated by these measurements, 
are intermediate in length between those of large and small in¬ 
dividuals of the California species. 
While the wolves agree in those characters which have been 
mentioned, important differences are observed in the skulls by 
which the species may be separated. The most pronounced differ¬ 
ences are found in the length of the snout, the Florida species be¬ 
ing a narrow snouted wolf, while the California wolf is broad 
snouted. Differences may be noted also in the posterior region of 
the skull. In his Memoir on the Canidae of Rancho La Brea,* 
Merriam brings out the fact that in the California wolf the two 
ridges which form the lambdoidal crest converge sharply above the 
occiput, while in most recent forms they sweep outward widely be¬ 
fore uniting at the union. The convergence of these ridges is not 
so pronounced on the Florida wolf as on the California wolf. 
The differences in the skull between the two species of wolves 
is brought out in the following table of measurements in which 
is included also such measurements as can be obtained from the 
type specimen of Cams dims. The measurements on specimens 
10834 and 10856 of the collection of the University of California 
are taken from Professor Merriam’s Memoir on the Canidae oi 
Rancho La Brea. 
*Memoirs of the University of California, Vol. 1, No. 2. The fauna of 
Rancho La Brea, Part 2. Canidae, by John C. Merriam, 1912. 
