150 JOURNAL OF THE [December, 



column. These combinations of divisions at the extremities of 

 the appendages lie nearly in a horizontal plane, with an approxi- 

 mately square outline, giving somewhat the appearance of the 

 expanded foot of an animal, furnished with many claws. And 

 it is probable that these structures serve one purpose of such 

 feet. For it can be seen that when such a conceptacle is 

 carried away from its native situation, these multitudes of little 

 hooks would cause it to adhere to any suitable surface on which 

 it might lodge. 



