514 PROF. ST.-GEORGE MIVART ON THE ZLUROIDEA. [June 6, 
with the right central, and in the proportion of the left lateral to the © 
left central lobe, in the cystic notch and gall-bladder being quite 
close to the left margin of the right central lobe, in the proportion 
borne to the left lateral iobe by the left central, and in the great size 
and in the close approximation (on the abdominal surface of the liver) 
of the left lateral and right central lobes. On the diaphragmatic 
aspect of the liver the caudate lobe hardly appears, though the 
right lateral lobe is very small compared with the right central. 
The last-mentioned lobe has a notch at the bottom of the umbilical 
fissure ; and therein lies the gall-bladder. 
Seen on its posterior, or abdominal, aspect, the liver shows a small 
Spigelian lobe, which is slightly bifid at its apex. The caudate lobe 
is small. The left central lobe does not appear. The proportion 
borne by the right lateral lobe to the right central is much as in 
Nandinia. The right central lobe lies almost entirely to the right 
of the gall-bladder, only a minute portion of that lobe being to the 
left of it. 
The liver of Proteles also belongs to the Crossarchus type of 
liver, in that the gall-bladder lies close to the left margin of the 
right central lobe—the cystic and umbilical fissures coinciding. On 
its diaphragmatic aspect the right lateral lobe is larger than the 
right central, and the former has a small notch at its margin. The 
proportion borne by the left lateral lobe to the left central is as in 
Nandinia. The small caudate lobe does not appear. On the abdo- 
minal aspect of the liver we see a small and simple Spigelian and a 
similar caudate lobe. The right lateral lobe is notched at its border, 
and bears a lobelet near its margin. No part of the right central 
lobe lies on the left side of the gall-bladder. The left lateral lobe 
has a puckered surface. 
In Crocuta’ the gall-bladder also lies much nearer to the left than 
to the right margin of the right central lobe ; but the umbilical and 
cystic fissures do not coincide. The caudate lobe is large. 
The Kidney. 
In the Aluroids there is a single papilla. This is at least cer- 
tainly the case in Felis, Genetta, and Prionodon. In Genetta 
tigrina the kidney is large, and more oval than in the Cat. Its long 
diameter is 3’’ 4’; its transverse diameter is 2”. 
The Trachea and Lungs. 
There are 45 cartilages to the trachea in the Cat ; 40 inthe Lion; 
47in the Puma ; 70 in the Genet ; 50 almost complete rings in Suri- 
cata, and rather more in the Ichneumons; and 45 in the Hyena 
(Meckel, Anat. Comp. vol. ix. pp. 484-487). Cuvier (J. c. vol. vii. 
pp. 52 & 102) remarks that in the Ichneumon the rings of the 
trachea extend four fifths round it, and that those of the bronchi 
disappear soon after they have entered the lungs. Meckel (J. c. 
p- 490) says that in Viverra the bronchi are large and with com- 
plete rings, and that these are very hard and complete and the 
1 P. Z. 8. 1879, p. 85, fig. 3. 
