59- 



ray oan be said to sat itself more nearly at right angles to the 

 oriented active tube feet by lateral as well as by dorsal movement* 





(See also Jennings (1907) description of the taking of food from th 

 pedioellariae by the tube feet)* 



V-" Hie slender armed speoies of starfish 



trosohelii) was suspended and a flat piece of thin celluloid was swung 

 by a thread to the ventral side of one of the rays. The tube feet, 

 oriented rather inactively toward the tip of the ray immediately 



sieze the object and "walk" it in the direction of the base* This 



\ 

 was observed to involve the orientation toward the object of quite 



a number of tube feet both above and below it and the bending of the 

 ray so as to receive the object in a sort of hollow* The tube feet 

 In actual contact with the object are, 



of course, undergoing the step reflex, but above and below, where 

 the tube feet are all directed toward the object, it oan be said, 

 gain that the ray tends to set itself more at right angles to aotive< 

 ly oriented tube fe-st, this time involving both dorsal and ventral 

 flexion* In the region where the tube feet are undergoing the step* 

 reflex, there is no bending of the ray# 



# It has been shown by both Jennings (1907) and Mangold (1908) 



