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opening into the intestine in front of the second pair of 
feet. 
The tmtestine is the direct continuation of the stomach. 
It commences in front of the second pair of feet, and 
passes through the thoracic and genital segments into the 
abdomen. It widens slightly behind its junction with 
the stomach, and then contracts as it passes through the 
fourth thoracic segment. It expands again in the genital 
segment, and contracts as it enters the abdomen. It 
terminates in a short rectum leading into the anus at the 
apex of the abdomen. ‘There are no convolutions in this 
alimentary canal. 
The intestine at its anterior end lies on the ventral 
surtace of the animal. In the centre where it passes 
through the genital segment, it courses along the dorsal 
surface. It bends down as it approaches the abdomen, 
and occupies the centre of that part of the body. In 
transverse sections of a mature female the stomach is 
iriangular in shape, with the apex pointing dorsally. The 
intestine in the genital segment is also triangular in 
transverse section, but the apex is directed ventrally. In 
immature females the stomach and intestine are of almost 
circular outline when cut transversely, so that the 
alimentary canal is considerably compressed when the 
reproductive organs arrive at maturity. 
The wall of the whole alimentary canal is lined with a 
thin layer of chitin continuous with the exterior. In 
many places it is considerably broken up, giving it the 
appearance of fine striation. Underneath the chitin is a 
layer of nucleated cells, which extends from the posterior 
portion of the esophagus to the rectum. There does not 
appear to be any marked regional differentiation in the 
cells. The lining of the stomach and intestine is thrown 
into a number of longitudinal folds (Plate III.,fig. 11), the 
