COLOIl VARIETIES OF MICE. 



49 



COLOR VARIETIES OF MICE.* 



A. Extended Series (Restriction Factor Absent). 

 1. With the agouti pattern. 

 Color variety. 



1. Black agouti, fig. 1 YBrBDPA 



2. Dilute black agouti, fig. 2 1 BrBdl '. I 



3. Pink-eyed black agouti, fig. 3 YBrBL , I 



4. Pink-eyed dilute black agouti, fig. 4 YBrBi 



5. Brown agouti, fig. 5 ] 'BrDPA 



6. Dilute brown agouti, fig. 6 YBrdPA 



7. Pink-eyed brown agouti, fig. 7 YBrDpA 



8. Pink-eyed dilute brown agouti, fig. 8 YBrdpA 



2. Without the agouti pattern. 



9. Black, fig. 9 YBrBDP 



10. Dilute black, fig. 10 YBrBdP 



11. Pink-eyed black, fig. 11 YBrBDp 



12. Pink-eyed dilute black, fig. 12 YBrBdp 



13. Brown, fig. 13 YBrDP 



14. Dilute brown, fig. 14 YBrdP 



15. Pink-eyed brown, fig. 15 YBrDp 



16. Pink-eyed dilute brown, fig. 10 YBrdp 



Black 

 agouti 

 series 



Brown 

 agouti 



scries 



Black 

 series 



Brown 



series 



B. Restricted Series. Animals in this Series Always Heterozygous in R. 



17. 

 IS. 

 19. 



20. 



21. 

 22. 

 23] 

 94 



26. 



27. 



28. 



29. 

 30. 



31. 

 32. 



Color variety. 



Black-eved yellow YBrBDP All 



Black-eyed yellow, fig. 17 YBrBDPR 



Brown-eyed yellow, fig. 18 YBrDP AR 



Brown-eyed yellow YBrDPR 



Dilute black-eyed yellow YBrBdP AR 



Dilute black-eyed yellow YBrBdPR 



Dilute brown-eyed yellow YBrdP AR 



Dilute brown-eyed yellow, fig. 19 YBrdPR 



Black, brown' 

 and yellow 

 pigment. 

 Brown and 

 yellow pig- 

 ment only 



Pink-eved dilute yellow YBrBdpAR f Black > br ° wn 



Pink-eyed dilute yellow YBrBdpR 



Pink-eyed yellow YBrBDp AR 



Pink-eyed yellow YBrBDpR 



Pink-eyed yellow YBrDpAR 



Pink-eyed yellow YBrDpR 



Pink-eyed dilute yellow YBrdpAR 



Pink-eyed dilute yellow YBrdpR 



and yellow 

 pigment 



'Brown and 

 yellow pig- 



k ment only 



Dark-eyed 

 intense yel- 

 low series 



Dark-eyed 

 dilute yel- 

 low series 



Pink-eyed 

 intense yel- 

 low series 



Pink-eyed 

 dilute yellow 

 series 



There are 32 pigmented varieties of mice which may be obtained in pure 

 races. The "restricted series," however, may be obtained pure in the sense 

 only that animals may be obtained which give merely the type of yellow 

 written before their gametic formula, and the single variety of the "extended" 

 series which the rest of their gametic constitution demands. Albino varieties 

 corresponding with these 32 colored forms are expected to occur and may be 

 produced at will. These albinos are distinguishable from one another only by 

 breeding tests, and it is therefore doubtful whether ail the 32 varieties have 

 as yet been isolated. 



*The factors T (total pigmentation) and S (self-pigmentation) are not included in these 

 formula?. 



