No. 615] SHORTER ARTICLES AND DISCUSSION 265 



been pointed out by Morgan and Ploughs This 

 been taken into account and is discussed with r< 

 appearance of each gene in that particular sectior 



to a forked female with normal e; 

 ondary exception"' from an XXV 

 linked eye color in her pedigree 

 were of the expected classes and si, 



ie of the mother's chromo- 

 red factors, as well as 

 receiving the eosin bar chromosome of the father. A mating 

 to one of her red-eyed brothers showed at once that the supposed 

 eosin female was actually heterozygous for eosin and for a new 

 allelomorph (coral) as she gave two kinds of sons, eosin and 

 coral, while the daughters were eosin and the compound eosin- 

 coral. The eosin-coral females are darker than pure eosin fe- 

 males and the original female was of this nature. 



Coral is the seventh mutant allelomorph to be found in the 

 white locus and counting the wild type gene forms with them a 

 system of eight allelomorphs. In the order of their discovery 

 these are : red, white, eosin, cherry, blood, tinged, buff and coral. 

 Coral does not show bi-colorism, but is the same for males and 

 females. It is similar to the color of very dark coral. It is 

 darker than all the other members of this series with the possible 

 exception of blood which according to the description of Hyde 

 in his discussion of blood 3 show's a considerable variation of 

 color according to cultural conditions. The color of coral is very 

 close to the darker shades of blood, but is much darker than the 

 lighter -hades and does not show any such variations in range of 

 color. Coral is distinctly darker than cherry and the other 

 lighter members of this series. Coral is a dull color and does 

 have the brightness of color of the wild stock, neither does it 

 show the fleck in the eye. 



The original coral- female was re-mated to a white male from 

 stock and behaved genetically, as would be expected on the as- 



