TABLE 1 



The character of regulation in relation to the size of the piece and the region of 

 the body. Series 197-201. Worms 16-18 mm. in length, in good physiological 

 condition. Begun June 18, 1909. 



TAILLESS 



NORMAL 

 WHOLES 



TERATOP- 

 THALMIC 

 WHOLES 



HEADLESS 



Series 201. Pieces = i 



Series 200. Pieces = I 



Series 918. Pieces = 1. < 



Series 199. Pieces ==iV. < 



Series 197. Pieces = re 



1 

 2 

 3 

 4 

 1 

 2 

 3 

 4 

 5 

 6 

 1 

 2 

 3 

 4 

 5 

 6 

 7 

 8 

 1 

 2 

 3 

 4 

 5 

 6 

 7 

 8 

 9 

 10 

 11 

 12 

 1 

 2 

 3 

 4 

 5 

 6 

 7 

 8 

 9 

 10 

 11 

 12 

 13 

 14 

 15 

 16 



70 



90 



60 



90 



100 



80 



20 



10 



30 



80 



100 



100 



10 



10 

 80 

 90 

 100 

 20 



10 

 60 

 40 

 100 

 30 

 30 

 10 

 10 



20 

 40 

 80 

 90 



10 

 40 

 10 



20 

 20 

 20 

 30 

 10 



90 

 20 

 10 

 10 

 20 

 20 

 10 



80 

 50 



10 



10 

 10 

 20 

 20 



60 

 30 



10 

 20 



10 

 10 



60 

 70 

 40 

 10 



80 

 90 

 90 

 70 



50 

 100 

 80 

 100 

 90 

 80 

 70 

 20 

 40 



10 



60 



80 



100 



100 



100 



100 



80 



70 



70 



60 



60 



50 



10 



10 



10 

 10 

 10 



10 



20 

 20 

 30 

 20 

 20 

 10 



