CHAPTER V 



OTHER BIVALVE MOLLUSKS 



tig. 62 



While re- 

 turning one 

 morning 

 from a ram- 

 ble over the 

 rocks of Pa- 

 cific Grove 

 that had been 

 left bare by 

 the retreating 

 tide, I was 

 much sur- 

 prised to see what seemed to be two white worms 

 moving about in a little hollow between the mossy 

 rocks, which was filled with sand and sea-water. 

 They were long and round, and about the size of a 

 lead pencil. As soon as I disturbed them a little, 

 they disappeared beneath the surface of the wet sand. 

 Suspecting what these singular creatures might be- 

 long to, I at once began to dig, and soon came upon 

 a fine clam, with a shell like that which is shown in 

 Figure 62. 



I was exceedingly glad to make the acquaintance 

 of a real, live Psammobia californica^ Conr., the 

 California Sunset-shell, for so I learned to call him. 

 As I wanted to see more of him and become better 



