146 GRAMMAR OF ENTOMOLOGY. 



its anterior to its posterior opening, is frequently 

 little more than a direct tube or cylinder; the 

 intestines are never subject to the convolutions so 

 general in vertebrated animals ; the passage of the 

 food is excessively rapid, and the change it under- 

 goes very slight. 



554. There are, originating from the stomach, 

 at or near its union with the intestines, several long 

 tortuous filiform appendages, which are said to be 

 bile vessels, and to correspond with the liver of 

 vertebrated animals. 



