1865.] FROM THE CAPE OF GOOD HOPE. 529 
3. Zipuiina. Teeth in the side of the lower jaw compressed. 
Beak subcylindrical, simple; intermaxillary linear, slender, 
rather swollen on sides of blower. 
Berarpivs. Teeth in the front of the side of the lower jaw 
conical. B. arnouzii. 
Zipuius. Teeth in the middle of the sides of the lower jaw of 
the male large, compressed ; of the female small, cylindrical, rudi- 
mentary. Lower jaw slender, tapering. Z. micropterus; Z. capensis. 
Diortopon. Teeth in the middle of the lower jaw conical, com- 
pressed. Lower jaw broad behind, suddenly narrowing in front. 
D. sechellensis. 
On reconsidering the account of the Short-nosed Physeter of the 
Cape, I have been induced to believe that the Physeters should be 
separated from the Catodons into a separate family called Physete- 
ride, characterized by the oblong rounded form of the head with 
the blowers on the hinder part of the crown, with a small narrow 
inferior mouth, and by having an elevated compressed dorsal fin and 
an ovate pectoral one. The skulls of the species known confirm this 
idea, as they have the concavity on the crown divided by a more or 
less central bony ridge into two cells or cavities, instead of being 
simple like that of the Catodons. 
M. de Blainville has figured and shortly described a skull that 
is in the Paris Museum, received from the Cape of Good Hope, under 
the name of Physeter brevirostris. On this skull I established the 
genus Kogia. 
Mr. William 8. Macleay, in his account of the skeleton of.the Au- 
stralian Sperm Whale, described and figured the skeleton of a Phy- 
seter thrown ashore on the coast of Australia, which is in the Au- 
stralian Museum at Sydney, under the name of Euphysetes grayit. 
It has been thought that these two genera are synonymous; but 
from the study of the figures and of the photograph of the bones of 
the Australian species, which have been kindly sent to me by Mr. 
Krefft, I am induced to believe that the genera are distinct, and that 
both ought to be adopted. They may be characterized thus— 
1. Koc1a. The septum that divides the cavity on the crown of 
the skull very sinuous, folded so as to form a central funnel-shaped 
concavity. Beak as long as broad at the base. 
Kogia brevirostris (= Physeter brevirostris, Blainv. Annals d’ Anat. 
et de Phys. ii. t. 10, 1835). Cape of Good Hope. Skull Mus. 
Paris. 
2. Evpuyseres. The septum that divides the cavity on the 
crown of the skull simple, longitudinal, only slightly curved. Beak 
shorter than broad. 
Euphysetes grayii, Macleay, on a New Sperm Whale, 1851, t. 2. 
Australia. Skeleton, Australian Museum, Sydney. 
