lo6. The European edible sea urchin, Echi- 

 nus esculentus. up to 6 inches across, with a 

 red shell and movable white spines, is found 

 from Nonvay to Portugal, usually below low- 

 tide mark. Only the ripe ovaries are eaten, 

 either raw, like caviar, or cooked. (Plymouth, 

 England. D. P. Wilson) 



137. The giant red urchin, Strongijloceiitrotiis 

 franciscaniis, which ma\' also be purple, is 

 more than 7 inches across. From Alaska to 

 Mexico it frequents the deeper tide pools and 

 rocky channels. ( Ralph Buchsbaum ) 



