40 THE NAUTILUS. 



beautiful species were dredged in from 12 to 15 fathoms. It is one 

 of the most attractive shells to be found in the Bay. 



Daphnclla fuscoligata Dall. One good specimen was found be- 

 tween tides by some little children who gave it over to me. 



Drillia inermis Hinds. 12 fathoms; living; one specimen. 



Drillia torosa Carpenter. 12 fathoms, and dead specimens on the 

 beach. 



Clathurella canjieldi Dall. Living under rocks at the big Tide 

 Pool. 



Mangilia angulata Carpenter. 12 fathoms. 



Mangilia hexagona Gabb. 12 fathoms. 



Mangilia sculpturata Dall. 12 fathoms. 



Cancellaria cooperi Gabb. 15 fathoms; one living, but immature 

 specimen. 



Olivella biplicata Sowerby. Between tides. 



Olivella pedroana Conrad. 12 fathoms. 



Olivella intorta Carpenter. 15 fathoms, sand ; occurring with the 

 " sand-dollars." 



Marginella jewettii Carpenter. Between tides ; dead, but good 

 shells common on the beach. 



Marginella pyriformis Carpenter. Shore to 12 fathoms. 



Marginella regidaris Carpenter. 12 fathoms ; with the preceding. 



Mitra maura Swainson. 12 fathoms ; several specimens. One 

 magnificent live individual was nearly three inches long. 



Mitromorpha filosa Carpenter. Between tides. 



Mitromorpha aspera Carpenter. 12 fathoms. 



Fusus luteopictus Dall. On and under stones between tides ; not 

 rare. 



Fusus robustns Trask. 12 fathoms; living; occasional examples. 



Nassa mendica Gould. 12 fathoms; evidently exceedingly com- 

 mon at moderate depths. 



Nassa mendica, var. cooperi Forbes. With the preceding and 

 perhaps even more common. 



Nassa perpinguis Hinds. 12 fathoms ; few obtained. 



Nassa fossata Gould. Fishermen. 



Nassa californiana Conrad. Fishermen and a few examples 

 dredged in 40 fathoms, off Moss Landing. 



Amphissa versicolor Dall. Exceedingly common from the shore 

 into 12 fathoms. 



