{Continued from page 269) 



38 Specimen (no. 73, table 7) a section of which is seen in figure 19. The 

 correspondence between external features and internal structures is typical, 

 the distribution of orange stripes accurately indicating the positions of pairs of 

 mesenteries of the first two cycles. 



39. Specimen a section of which is shown in figure 25. Three days before 

 this diagrammatic sketch was made, the orange stripes were noted as being 

 equidistant. Internal structures give little suggestion of regeneration. The 

 unequal distribution of the orange stripes shown in the diagram may be due to 

 the momentary state of expansion. 



40 Diagram of a monoglyphic specimen (no. 43, table 6). Color difference 

 did not clearly locate the boundary between old and new parts on the loft. In 

 sections the mesenteries gave clear evidence of its position. 



41 Diagram of a triglyphic specimen with three old and eleven new orange 

 stripes. Apparently the eleven orange stripes and two of the three white bars 

 belonged to a single regenerating sector. Sections make it clear that there are 

 here two regenerating zones of different age. See page 216. 



PLATE 10 



EXPLANATION OF FIGURES 



42 Curve (solid line) representing the number of stripes in individuals of 

 combined lots 1, 2, and 3 of table 14. The similar curve (l)roken line) given by 

 Davenport ('03) is added for comparison. For a discussion of the data, see 

 page 221. 



262 



