30 PROCEEDINGS OP THE ACADEMY OF [1879. 



They are found under dead wood, among decayed leaves, and 

 range from near the seashore to about 2000 feet above sea-level. 



The only variation is in size, more or less produced spire, and 

 color, which varies from a light to dark corneous, rarely brownish, 

 with faint indication of a band on the body whorl. 



I obtained Mr. Pease's type specimens of lucida in beach sand 

 at Anaa, one of the Paumotus Islands. They were worn, and 

 discolored by salt water. Living shells, which I subsequently 

 found at the same locality, differed none from nitidu. 



