(592 ON PATXERX-BLENDIXG, 



Coticlasions. 



(1) Obliterative shading in animals is sometimes eflected by 

 means of pattern-blending. 



(2) The outlines of animals are frequently masked by the 

 blending of patterns at or near their margins. 



(3) Patterns having these effects are usually unlike the 

 animal's surroundings and therefore cannot be of use in conceal- 

 ment by means of mimicry (using mimicry in the broadest sense 

 of the word). 



