66 



THE INHEEITANCE OF COLOR IN MICE. 



Pink-eyed brown agouti x brown. 

 Cross 59. Both parents homozygous. YiBr2D2ptiA2 x Y2BriD2P2. Expectation, Br^lj only. 



Cross 60. Homozygous pink-eyed brown agouti crossed with brown heterozygous in dark 

 eye. YiBrJDi'piAi x YJir^DiPp. Expectation, 1 BrAg, 1 pBrAg. 



VIII. PiNK-ETED Dilute Brown Agouti, YBrdpA (Fig. 8). 



Eyes pink; ears, tail, and feet very lightly pigmented with brown. In both ventral and 

 dorsal hairs this form resembles a dull intense pink-eyed brown agouti, differing chiefly 

 in the comparative lack of bright yellow pigment and in the mealy, washed-out look. 

 The agouti pattern is very weak indeed. 



Pink-eyed dilute brown agouti x pink-eyed dilute brown agouti. 

 Cross 61. Both parents heterozygous in agouti. Y^Br^p^A xY2Brid2PiA. Expectation, 

 3 pdBrAg, 1 pdBr. 



Pink-eyed dilute brown agouti x dilute brown. 

 Cross 61a. Pink-eyed dilute brown agouti heterozygous in agouti crossed with dilute brown 

 heterozygous in dark eye. YiBrApiA x YiBrsfUPp. Expectation, I dBrAg, 1 dBr, 

 1 pdBrAg, 1 pdBr. 



Cross 61b. Both parents homozygous. Y^BrtdiPiAi xYiBr^ftiPi. Expectation, all dBr^lj. 



