190 



Racial Studies in Fishes 



TABLE IV. 



Station '6\, I se Fjord, Denmark, 1914 — 1919. Decade Investigations. 



Number of vertebrae in 857 mothers as compared with average number of vertebrae 

 in their offspring (857 decades). Average of population about 113*20. 



Transplantation of Population Samples from Station 31 and Station 34, 1916. 



Decade Investigations. 



Average number of vertebrae in offspring |^ 

 of transplanted sample j 



Average number of vertebrae in trans- ) 

 planted mothers j 



Station 31 



iJ4-SJ9± 1-059 

 (27 decades) 



113-115 

 (26 specimens) 



station 34 



108-283 ±l-mi 

 (11 decades) 



107-00 

 (9 specimens) 



TABLE VL 



Station 31, Ise Fjord, Denmark. Transplantation Experiments, 1916 — 1917. 



Decade Investigations. 



Average number of vertebrae in offspring of transplanted specimens and in offspring 

 developed under natural conditions. 



Average number of vertebrae in offspring of 



The figures in brackets indicate the number of mothers or decades. 



