26 TllAXSACTlOXS LIVERPOOL BIOLOGICAL SOCIETY, 



t]ie fittest.' "Whenever some hundreds of larvae are 

 confined together in tlie comparatively small space of a 

 tank, about 2 per cent, or -'3 per cent, only reach the 

 lohsterling- stage. It apparently matters not whether 

 they are artificially fed or left to exercise their canui- 

 halistic proi)ensities — tlie result is in all cases practically 



Fi(i. 11. Newly-batched young lobster. Kioin a pbotoi^iaph by 

 Mr. Edwin Thomp.son. 



tlie same. No difference in the rale of mortality at the 

 periods of larval ecdysis has hccii ohserNcd between 

 ai 1 ificially fed laivae ;iii(l those wliicli have lived enlirtdy 

 upon their weaker biet liieii. 'i'lie iii()iialil\- at llie 

 periods of ecdysis was exceedingly hea\y amongst the 

 1,400 larvae in tlie hutchery tank, though tliey were fed 

 at frequent intei\als and snpplied with abundance of 

 circulat in"- water." 



