Fig. 101. - Variation in size <>t' M-allop.s. The two on the left are fifteen months 

 old, while the two <>n the riuht arc "seed" scallops three months old. The dif- 

 ference in size in scallops of the same aire, especially in different localities, renders 

 impossible the definition of a "seed" scallop l>y means of a size limit. 



