THE 



AMERICAN NATURALIST 



Vol. LIII. ^ Novemher-Decemher , 1919 No. 629 



INHEEITANCE OF WHITE-SPOTTING AND 

 OTHER COLOR CHARACTERS IN CATS 



T)K. P. W. WlUTIXd 



Ix a previous paper^ I have presented data bearing on 

 tlie general subject of the inheritance of coat-color in cats. 

 The experiments at the University of Pennsylvania were 

 still in progress when the paper was published and 

 fui'ther results have since been obtained. Unfortunately 

 ail cczfiiia iiit'ceted the stock and the investigations were 

 l^rou.niit to ail oiul by the death of several animals. It is 

 tliouuiit aih isabh' therefore to present the rest of the 

 data ill the present ])aper and to summarize results thus 



Xunibei's deiiotiii.u- indiviihials or matings are insei'ted 

 as in the previous i)aper for the purpose of cross ref- 

 erence. In the genetic formulfe A' denotes much-ticked; 

 -4, little-ticked ; non-ticked ; B' denotes lined ; B, striped ; 

 h, blotched; denotes intensely pigmented; m, maltese 

 dilution ; TT' denotes dominant solid white; w, color; F de- 

 notes yelhnv; y, black; Yy, tortoiseshell. Symbols are 

 omitted when character was for any reason undetermined. 



A eivam male (24) (b.m.w.Y) was crossed (48) to a 

 solid-white vellow ."ved lialf sister I \V) frniii matinu- 

 4:^ (a white'iiKde hvnii ••aiio,iiah.ii>" ( Vv) ereani feiiiah' 

 (2:',) mentioned hehnv). There were pnuhu-ed <me orange 

 mah' (l).^l.w.V). and one cream female (h.ni.w.V). Both 



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