Dr. J. E. Gray on the Japanese Pig. 413 
broadness of the palate, the skull of the Japanese Pig bears some 
relation to the skull of the Potamocherus penicillatus ; but the late- 
ral ridges of the nose are not so dilated, while the skull is higher in 
front, and the palate is wider in the Japanese Pig than in the same 
arts of Potamocherus. 
In the wild Pigs of Europe, India, and Java, and in the European 
domestic varieties, the nose of the skull is always narrow and rounded 
on the sides, and the palate is narrow. 
Fig. 1. Skull of Sus serofa ferus. Fig. 4. Palate of Sus pliciceps. 
2. Palate of Sus scrofa ferus. 5. Lower jaw of Sus pliciceps. 
3. Lower jaw of Sus scrofa ferus. 
Under these circumstances, I am induced to regard the Japanese 
Pig as a distinct type, and propose to call it Sus pliciceps until we 
receive further information respecting it. 
