71 



blind tubG, opening only at its anterior end into the 

 stoniacli. Internally it is lined by a ciliated nucus mem- 

 brane, v/hich is folded like a typhlosole (fifjs. 32,33), 

 but the fold seems of independent origin, and not at all 

 homolocous witli the fold in the intostine. The long re- 

 tention of woody particles in tlie caecum, along with the 

 greatly increased absorbent surface of the latter, indi- 

 cates tliat the wood is in part digested and serves as food- 



In elongating posteriorly tlie caecum pushes the in- 

 testine ahead of it, so that the latter alvmys forms a 

 very long straight loop around the former. The intestine, 

 along v^ith the great development of the caecum, and the 

 greater development of the liver on the right side, in the 

 adult leaves the stomach slightly to the left of the mid- 

 line, near the posterior end (fig. 10). Bending forwards, 

 it foxTOS a single short loop and then passes backwards to 

 form theloop around the caeciim. Then passing dorsal to 

 the stomach it bends over the posterior adductor as the 

 rectum (r) wliich projects slightly into the anal canal. 

 Throughout its v/holo extent the intestine possesses a 

 typhlosole, but slightly developed, except in that part 

 next to the stomach. Here the typhlosole is so greatly 



