Fig. 92. A litter of pigs by two belted red parents. Evidently this form of white spotting is not fully 

 recessive, since part of the pigs are not belted. (By courtesy of Simpson and Detlefsen.) 



Fig. 93. A belted red sow and her litter by a belted red boar. Note variation in belt or its total ab- 

 sence. (By courtesy of Simpson and Detlefsen.) 



Figs. 94 and 95. Foot bones of mule-footed (syndactyl) swine. Only the hoof and nearest pair of bones 



show complete fusion. (After Spillmau.) 



