ANATOMY OE BALJENOPTEEA EOSTEATA. 
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The Spigelian or central lobe was elongated, and extended from the vertebral edge 
behind to the transverse fissure in front, which its free anterior tongue-shaped extremity 
bounded to the left ; its right edge was thin and overlapped the vena cava partially 
behind, while it completely covered it in front, and became continuous with the right 
lobe by a thin bridge of hepatic substance ; to the left a superficial branch of the vena 
portae formed its boundary. 
On the lower surface there were only two fissures, a transverse situated between the 
right and Spigelian lobes for the transmission of the vena portae, hepatic artery and duct, 
and a second for the reception of the vena cava. The portal vein, which measured 
4 inches in circumference, entered at the posterior and right side of the fissure, where 
it formed a dilatation or sinus, and then divided into two branches, of which the left was 
the larger. The hepatic artery, which was an inch in circumference, entered the fissure 
midway between the duct and the vena portse, but on a plane inferior to both, and after 
dipping into the hepatic substance it divided into its right and left branches ; the duct 
which lay to the left side of the fissure was formed by the union of the right and left 
branches, of which the latter was much the larger ; its coats were highly elastic, and it 
measured about three-quarters of an inch in circumference. The umbilical vein entered 
the free border of the falciform ligament, and for about the distance of 5 inches from 
the left end of the transverse fissure was pervious. At 3 inches from its point of en- 
trance it measured in circumference 2 \ inches, but beyond this point it suddenly nar- 
rowed and soon after became obliterated ; one of its branches united with a radicle of the 
left branch of the vena portse, but no distinct ductus venosus could be seen, as is the case 
in the horse. The vena cava grooved the posterior surface of the gland for about 10 inches 
of its course, and formed a curve whose convexity was directed to the left, where it 
entered this channel ; its circumference measured 5 inches, and at its point of emergence 
it had increased to 6 inches ; its coats were comparatively thin, but were strengthened 
by a thin layer of the capsule of Glissok, and also by the liver substance that crossed 
and partly surrounded it : no gall-bladder existed. A transverse section through the gland 
displayed nothing but the orifices of extremely large vessels and coarse parenchymatous 
tissue connecting the granules. 
The kidneys were elongated, prismatically shaped organs, presenting three surfaces 
bounded by three blunt edges ; they lay one on each side of the spine in the anterior 
part of the lumbar region, and measured 15 inches in length by 5 inches in breadth, 
and 2 \ inches in thickness in the centre, but diminishing towards their extremities by 
■ tapering into bluntish points. They were made up of numerous small lobules, some being 
round, others polygonal in shape, averaging about half an inch in diameter. The renal 
arteries entered their inner edge about 4 inches from the anterior extremity. The veins 
made their exit immediately above the arteries ; the ureters commenced in the centre of 
the gland by the direct union of the tubes from the several lobules, there being no 
regular pelvis to the organ, and passed out from the inferior angle. Numerous large 
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