538 
BYRON ROBINSON. 
ciliated, nor shows visible tenia coli, nor appendicae epiploicas, 
but the faecal matter produces a bulging-. The sigmoid flex¬ 
ure and meso-colon descendens together are one and one-half 
inches long. The transverse meso-colon is flat against the 
meso-duodenum. The ascending meso-colon is free for two 
inches. The colon is smaller in size than the small intestine. 
A very long mesentery commune the loops would herniate. 
There is no fossa duodeno-jejunalis, as in man, but the duode¬ 
num has attached to it a very wide meso-duodenum, whose 
origin is in the middle line. The duodenum is six inches long 
and its meso-duodenum is one and one-half inches. The 
pylorus lies to the right of the median line. The small intes¬ 
tines are four feet, three inches long, and the mesentery two 
inches. The mesenteric glands are in a single row, of some 
sixteen to eighteen in number. It is the single mesenteric 
gland like the pig’s. The kidney is almost surrounded by 
peritoneum and is very loose ; the fat reaches almost from base 
to top ; almost buries it. There is an excessive amount of fat 
around each kidney. The spleen is one and one-half inches 
long and is the shape of a dog’s tongue. Its gastro-splenic 
omentum is three-fourths of an inch long. The liver has nine 
lobes, lies in middle of body. The gall-bladder is the size of 
a pea. The left coronary ligament has exactly the same re¬ 
lation to the liver in the squirrel as in man. It extends from 
the upper surface of the left lobes to the diaphragm and not 
to the posterior border. The right coronary ligament is the 
same as in man, but also extends from the upper surface to 
the right lobe of the diaphragm, and not from the edge or 
border. From some of the lobes extend separate or distinct 
ligaments of peritoneum, as if accessory suspensory ligaments. 
In this specimen the distinct three divisions of the lesser 
omentum are similar to man, i.e., the pars tendineus, pars flac- 
cida and pars hepato-duodenale, The vas deferens lies in 
wide folds of peritoneum filled with fat, which exist on each 
side of the bladder. The inferior mesenteric vein empties 
into the splenic vein at junction with the super mesenteric, as 
in man. The left kidney is one-half an inch lower than the 
right: forced down by the bulging stomach. 
