REPARATION OF INJURIES. 233 



shape of fish and worm, are numerous. From the 

 latter they endeavour to protect themselves by means 

 of their spinous panoply, which they can erect and 

 stiffen, presenting a thousand spears on every side, 

 leaving no point unguarded; the bruises they bear 

 with impunity, and it must be a very severe wound 

 from which they cannot recover, if they are endowed 

 with the same reparative powers as other Echino- 

 dermata. Monro even mentions that he has seen the 

 pieces of an Echinus when broken up walk off in dif- 

 ferent directions; but what became of them subse- 

 quently he does not tell us, neither are we acquainted 

 with any direct observations concerning the extent to 

 which these creatures are able to resist or repair 

 mutilation. 



