286 



W. C. ALLEE 



TABLE 9 



Showing the rheotactic and concussion responses at the time of molting. The inter- 

 val between molts expressed in days is given in the second column, the interval 

 preceding the first observed molt is given as over the appropriate number of days; 

 thus, in number I the first molt occurred after fourteen days of observation and 

 the interval is listed as being over fourteen days. • The starred numbers indicate 

 that these figures are repeated in the preceding or succeeding line of the table 

 due to the short time interval between the anterior and posterior molts 



