SOME EXTINCT CATTLE 263 
that "-5. crassicornis has not been found outside of 
Alaska ; B. antiquus is not definitely known to occur 
farther east than Big Bone Lick, Kentucky ; and 
that no species save B. latifrons is certainly known 
from Florida and other southern localities, while it 
has not been found on the Pacific coast, horn-cores 
ascribed to this species being really those of B. 
antiquus. B. occidentalis is so far known from Kansas 
and Alaska." 
In another passage the same author, after mention- 
ing that it is impossible to correlate detached teeth 
and limb-bones with the skulls of the different species, 
remarks that "the best that can be done is to use 
such material as we have and to endeavour to dis- 
tinguish the species by their horn-cores, and after 
going over the subject carefully I am convinced that, 
in spite of an admitted amount of individual variation, 
the horn-cores afford very good specific characters. 
They do not differ among themselves any more 
than do other portions of the skeleton, and in 
the present case they are infinitely preferable to 
scattered teeth. Moreover, the differences between 
the skulls of such species as B, bison and B. 
occidentalis indicate that the various species could 
be well differentiated did we possess sufficient 
material. . . . 
" So far as can be judged by the appearance of 
the specimens, or the conditions under which they 
have been found, all the species might have been 
coeval, although this is naturally highly improbable." 
Turning to buffaloes, it has already been mentioned 
that the fossil buffalo from the Pleistocene gravels 
of the Narbada Valley, in central India, for which 
Dr. Hugh Falconer proposed the name Bos pala^,- 
