1865.] DR. J. E. GRAY ON ENTOMOPHAGOUS EDENTATA. 359 
There is a partial hollow, as if it were the cavity of an old tooth 
that had fallen out, on the margin of the inner jaw, behind the base 
of the elongated arched tooth. 
“In your letter you sent me a sketch of the skull of Ziphius in- 
dicus with two teeth in the front of the lower jaw, and a short 
stumpy head, totally unlike the skull of Ziphius figured in the ‘ Ca- 
talogue of Cetacea.’” 
‘There is a skull in the South African Museum which I have got 
down as a Globiocephalus. It is the skull of a very old animal 
without teeth; but I think I can trace that it has had two front 
teeth in the lower jaw, if not also along (the edge of) the upper and 
lower jaw. The animal was taken on our coast.” 
The figures of the skull which accompany this note appear to 
me to represent the skull of a species of Hyperoodon, which differs 
from Hyperoodon of Europe in having only a low crest on each side 
of the maxillary bones. I would propose to designate the species 
Hyperoodon capensis. 
Skull and lower jaw of Hyperoodon capensis. 
The length of the skull, from the end of the rostrum to the occi- 
pital condyle, is 3 feet; the height of the skull, from the crest of 
the blower to the condyle, 2 feet; the greatest width of the brain- 
case 1 foot 7 inches. . 
4. REVISION OF THE GENERA AND SPECIES OF ENTOMOPHAGOUS 
EDENTATA, FOUNDED ON THE EXAMINATION OF THE SPECI- 
MENS IN THE British Museum. By Dr. Joun E. Gray, 
F.R.S. 
(Plates XVII., XVIII., XIX.) 
The species of this family of animals have been so well described 
by Cuvier, Sundevall, Lund, Burmeister, and others, that I have only 
