SHELLFISHES intrigue scientists, not only because of their ap- 

 pealing beauty and strange forms, but because of their habits 

 and the contributions they make to the amazing history of flora 

 and fauna of the sea. In the picture above, L. M. Paquette is ex- 

 amining pectin shells from the Gulf of California for commensals. 



CAPTAIN HANCOCK collecting 

 shellfishes with an oyster rake 

 in shallow waters of the Gulf of 

 California. 



