34 



INHERITANCE IN GUINEA-PIGS. 



subclasses (agouti and non-agouti), readily distinguishable, except in 

 the case of albinos. 



Matings in which both parents were agoutis produced 44 agouti to 

 13 non-agouti young, expected 43 to 14, which is good agreement. 

 Matings of an agouti with a non-agouti animal produced a considerable 

 excess of agoutis, viz, 58 agouti to 42 non-agouti, where 50 to 50 is the 

 expected distribution. The departure from the expected equality of 

 agouti and non-agouti young is, however, not probably significant. 



TABLE 20. Classification of the F 2 young of d'1002, obtained from 



classified in table 19. 



animals 



If we summarize the matings in which every mother and father is 

 known to have been capable of producing albinos, we have 96 colored 

 to 28 albino young; expected 93 to 31 a very good agreement with 

 expectation. 



Summarizing the matings between a red-eyed male and a dark-eyed 

 female known to have been capable of producing red-eyed young, we 

 get 40 dark-eyed and 27 red-eyed; expected 33.5 and 33.5. This 



