20 



ARKIV FÖR ZOOLOGI. BAND 5. N:0 10. 



same of most other Cavicornia irrespectively food. The physi- 

 ological explanation of this fact must be that the repre- 



Fig. 10. The large intestine of Poephagus grunniens. 

 a. ansa proximalis; b. ansa distalis; c. csecum; i. small intestine; r. reetum. 



sentatives of the subfamily Bovince are able of digesting 

 their food in a somewhat different way than other Cavicor- 

 nia so that such a great length of the large intestine as in 

 the others is not necessary to them. This results in the 



