I I 



>."lr. 



.-'-'X 



■C 



Chart 3 The rheotactic and concussion responses of isopod no. VII. For 

 details of charting, see chart 1, p. 274. 



Chart 4 The rheotactic and concussion responses of isopod no. VIII. For 

 methods of plotting, see chart 1, p. 274. 



277 



