LARVAE OF ARBACIA PUNCTULATA 



395 



TABLE 14 

 Constants, Experiment 18. Solution d 



48 hours 



Right anal. 

 Left anal. . 

 Right oral. 

 Left oral. . . 



72 hours < 



Right anal. 

 Left anal. . 

 Right oral. 

 Left oral. . . 



96 hours < 



120 hours 



Right anal. 

 Left anal. . 

 Right oral. 

 Left oral . . . 



Right anal. 

 Left anal. . 

 Right oral. 

 Left oral . . . 



TABLE 15 

 Constants, Experiment 19. Solution a (control) 



48 hours < 



Right anal. 

 Left anal. . 

 Right oral. 

 Left oral. . . 



72 hours < 



96 hours 



Right anal. 

 Left anal. . 

 Right oral. 

 Left oral. . . 



Right anal. 

 Left anal. . 

 Right oral. 

 Left oral. . . 



(Right anal. 

 Left anal.. 

 Right oral. 

 I Left oral. . . 



30.22 

 30.22 

 30.20 

 30.20 



45.46 

 45.43 

 32.03 

 32,03 



0,15 

 0.15 

 0.15 

 0.15 



0.17 

 0.16 

 0.10 

 0,10 



59.43 ± 0.20 



59.47 ± 0.21 



41.35 ± 0.19 



41.41 ± 0.19 



67.55 

 67.45 

 45.38 

 45.41 



0,21 

 0.21 

 0.19 

 0.19 



STANDARD 

 DEVIATION 



2,35 

 2.35 

 2.33 

 2.33 



0,11 

 0.11 

 0.11 

 0.11 



2,53 ± 0.12 



2.50 ± 0.11 



1.60 ± 0.07 



1.59 ± 0.07 



3,04 

 3.11 

 2.93 

 2.95 



0,14 

 0.14 

 0.13 

 0.14 



3.16 ± 0.15 



3.16 ± 0.15 



2.89 ± 0.13 



2.81 ± 0.13 



COEFFICIENT 

 OF VARIATION 



7.78 ± 0.37 



7.78 ± 0.37 



7.72 ± 0.37 



7.72 ± 0.37 



5.56 

 5.51 

 5.00 

 4.97 



4.69 

 4.68 

 6.38 

 6.20 



0.26 

 0.26 

 0.23 

 0.23 



0.24 

 0.24 

 0.34 

 0.34 



0,22 

 0.22 

 0.30 

 0.29 



