136 



WEST COAST SHELLS 



Mangilia variegata^ Cpr., 

 the Variegated Mangilia, has 

 a shell similar to the last, but 

 rather more slender, and 

 marked with more raised 

 ridges. The shell is thin, yel- 

 lowish in color, especially 

 around the aperture, though 

 the spire is apt to be darker. 

 Large specimens reach a 

 length of lo mm. It is found 

 on the coast of southern Cali- 

 fornia. 



In Figure 109 we have a 

 bold picture of the rare and 

 Fig. 109, X i (*) beautiful shell named Cancel- 



laria cooperi^ Gabb, Cooper's 



Cancellaria. Fine living speci- 

 mens are occasionally hauled 



up in the nets of the fishermen 



or are gathered by the dredge, 



but good specimens are still 



very valuable, so much so that 



I never owned one. The few 



that have been found off the 



coast of California give us 



proof, however, that the 



depths of the sea hold many 



choice and beautiful treasures, 



and as we look over the blue 



waves we can in imagination Fig. no. xM*) 



