ROSENTHAL: TROPHIC INTKRACTIOX BETWEEN SEA STAR AND GASTROI'On 



Figure 4. — Convergent feeding behavior between Pinaster giganteus and Kelletia kelletii 

 21 m underwater off Point La Jolla, Calif. Tlie sea star is eating a Chama pellucida, 

 while three whelks are attempting to get to the prey. 



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