Variations Among Scyphomedusce. 



56. 



Of 218 ephyrae taken at Waquoit Bay in April, 1904, there 

 were 50 variants, or 22.9 per cent. The chief features are 

 tabulated as follows: 



Table IV. 



Now if we compare these results with those shown in Tables 

 VI and VII, in which are presented in detail the variations found 

 in 226 specimens of young Aurelia flavidula taken at Waquoit 

 Bay in May, 1905, and in a collection of adults made at New 

 Bedford about the same time it will be seen that they all tend to 

 confirm the general propositions under consideration, namely, 

 that varietal features found in the ephyra persist in the adult, 

 and furthermore, that there is no evidence of any selective process 

 involved during these several changes in ontogeny. 



Of 392 ephyrae in process of metamorphosis, taken at Waquoit 

 Bay in April, 1904, there were 87 specimens, or 22.2 per cent., 

 which showed various aspects of variation, the principal features 

 of which are classified in the following tabulated form: 



