Lima Dehiscens at Laguna Beach 
MARGARET L. CATE 
This interesting mollusk was obtained se\eral times during the 
Summer of 1915. Its acti\'ities were obser\ed in tlie aquarium. 
It usually remained in an expanded condition. Its movements were 
caused by forcing water out of the siphons not like the movements 
of Pecten. The reproduction of the drawing given at this time is 
not quite the right color of pink. 
( Contrihitlimi from tin Zoolot/iciil Lahor/itory of Pomona College) 
