58 THE NAUTILUS. 



Conus californicus, Hds. Plentiful under rocks. 



Pleurotoma carpenteriana, Gabb. Torrey Pines. Several dozen. 



Drillia moesta, Cpr. Under stones. 



Drillia inermis, Hds. Pacific Beach. Several specimens. 



Drillia penicillata, Cpr. Mostly dead. 



♦Mangilia striosa, C. Adams. Fine large specimens. 



Cancellaria cooperi, Gabb. Torrey Pines. One example. 



Olivella biplicata, Sby. Common in the sand. 



Olivella pedroana, Conr. With above. 



Marginella jewettii, Cpr. Several worn specimens. 



♦Marginella pyriformis, Cpr. Plentiful. 



Marginella varia, Sby. Living, under stones. 



Mitra maura, Swain. Several found living. The pure white 

 animal contrasts strongly with the dark shell. 



Mitromorpha aspersa, Cpr. Rare. 



♦Mitromorpha filosa, Cpr. Not plentiful. 



Siphonalia kellettii, Fbs. Brought in by fishermen. 



Macron lividus, A. Adams. Under stones. 



Nassa fossata, Gld. One living shell. 



Nassa mendica, Gld. Pacific Beach. A few worn specimens. 



Nassa mendica, Gld., var. cooperi, Fbs. False Bay. One ex- 

 ample. 



Nassa perpinguis, Hinds. Mostly inhabited by hermit crabs. 



Nassa tegula, Rve. False Bay. Common in muddy stations. 



Columbella guasapata, Gld. On eel-grass. 



Columbella guasapata, Gld., var. carinata, Hds. With above. 



Amphissa corrugata, Rve. Several found living. 



*Amphissa versicolor, Dall. One shell. 



Murex festivus Hds. Under rocks. 



Murex incisus, Brod. Common in rock pools. 



Murex nuttallii, Conr. Pacific Beach. Many examples. 



Ocinebra interfossa, Cpr. On the beaches. 



Ocinebra poulsoni, Mutt. Pacific Beach. With Murex festivus. 



Ocinebra gracillima, Strs. Among drift. 



Trophon belcheri, Hds. Brought in by fishermen. 



Monoceros engonatum, Cpr. Not rare. 



Monoceros lapilloides, Conr. Several living shells. 



Scala crenatoides, Cpr. Crevices of rock. 



Scala hindsii, Cpr. Common. 



