1882.] PROF. ST.-GEORGE MIVART ON THE ZLUROIDEA. 511 
The right central lobe has a short and wide cystic fissure, through 
which the gall-bladder appears. That portion of the right central 
lobe which is on the right of the gall-bladder also appears to be 
more in excess of the portion which is on the left of the gall-bladder 
than it is in Genetta tigrina, and thus more to resemble its condi- 
tion in the Cat. This appearance is caused by the circumstance 
that, in the Civet, the large right lateral lobe comes down and ex- 
cludes from view (on the abdominal surface) all that part of the 
right central lobe which lies to the right of the gall-bladder. The 
left central lobe is quite hidden from view when the abdominal 
aspect of the liver is seen. The Spigelian lobe is much stouter than 
in the Genet, and is not grooved. 
In Paradoxurus larvatus the liver is like that of the Genet, ex- 
cept that the caudate lobe has become very large at the expense of 
the right lateral; so that, on the diaphragmatic surface, the right 
lateral lobe appears as a triangle between the caudate and the large 
right central lobes. There is no gall-bladder ; nevertheless the right 
central lobe is notched as in the Genet. The left lateral and left 
central lobes present, on their diaphragmatic surface, an appearance 
similar to that which they present in Genetta. The posterior 
(gastric) aspect of the liver is also much as in the Genet, save that 
the caudate lobe is very large and the Spigelian lobe smaller, not 
grooved and slightly bifurcated at its apex. 
In Nandinia the diaphragmatic aspect of the liver is much as in 
Viverra, but the right lateral lobe is smaller in proportion to the 
right central, though not so much smaller in relation to it as in 
Genetta. The right central is deeply notched at its ventral margin, 
but does not show any gall-bladder. The left central lobe is rather 
smaller in proportion to the left lateral than in Viverra, and is larger 
in proportion to its breadth. The left lateral lobe is nearly bisected 
by a transverse fissure which runs inwards from its lateral margin. 
The abdominal (gastric) aspect of the liver shows a caudate and a 
Spigelian lobe nearly as in Genetta. The left central is quite ex- 
cluded from view. That part of the right central lobe which is on 
the right of the gall-bladder is more in excess of the part on the 
left, and is much as it is in the Cat. 
In 4retictis, on the diaphragmatic aspect of the liver, the right 
and left segments appear nearly equal; the right lateral and right 
central lobes are also nearly equal. The latter has two ventral 
notches, the one more to the right being the cystic notch. No gall- 
bladder, however, appears. ~The proportions of the left lateral and 
left central lobes are much as in Nandinia; but the apex of the left 
central is separated off by an oblique transverse groove. 
The posterior aspect of the liver is very like that of the liver of Nan- 
dinia ; but there is no transverse groove on the left lateral lobe. That 
portion of the right central lobe which is on the right of the cystic 
notch is smaller than the portion which is on the left of that notch. 
The latter portion has four or five superficial fissures. In this con- 
dition of excess in the left portion of the right central lobe Aretictis 
differs from Felis, Genetta, Viverra, Paradozurus, and Nandinia. 
