298 ACCOUNT OF A RIBBON FISH. 
lower border of the pancreas obscured by the ceca of the right 
side ; and then keeping along the floor of the abdominal cavity, 
it passes on as a straight tube to the anus, figs. 2 & 3g, at the 
front of which it opens separately. The diameter of the duode- 
num is diminished one-half at its exit from the pancreas, and the 
intestine continues of the same size to within an inch or two of 
the anus, where it is gradually lessened to about }inch. The 
length of the intestine from duodenum to anus is 3ft. 5in. The 
inner surface of the intestine below the duodenum presents a 
very delicate honeycombed texture, the laminz being fine, of 
varying size, and crossing each other in all directions, the largest 
standing up pretty high and taking a longitudinal course. This 
form of valvule conniventes extends to within three or four inches 
of the anus. A few inches below the end of the duodenum was 
observed a delicate and transparent, but large and crescentic, 
membranous valve, projecting into the cavity of the intestine. 
There is no division into large and small intestine, unless the 
above valve point it out. No cecal appendage, except to the 
stomach. The intestine contained nothing but a quantity of 
pancreatic secretion. 
Attached to the upper surface of that part of the intestine 
which is opposite to the pylorus, is the spleen, fig. 3 4, ovoid in 
form, delicate and spongy in texture, 2 in. long by j in. broad, 
and of a very pale reddish brown colour. Large blood-vessels 
run along both the upper and lower borders of the intestine be- 
low the duodenum. 
The liver, figs. 2 & 3 i, is large, and extends 18in. backwards 
from the anterior end of the abdominal cavity lying below the 
esophagus, somewhat pointed in front, and becoming more bulky 
towards the posterior end, where it is truncated diagonally from 
above downwards and forwards. 
The upper surface has a deep fissure partially dividing it into 
two unequal masses, the left being larger than the right; along 
this fissure run the hepatic and pancreatic blood-vessels ; the gall- 
bladder and the cystic duct lie also attached to it. 
The gall-bladder, fig. 3 j, about 5 in. long and 14 in. broad, is 
of an irregularly elliptical form, its long diameter corresponding. 
