28 THE NAUTILUS. 



The following list includes all the species taken in the four dredg- 

 ing trips : all are live specimens unless marked dead : 



List of Shells Dredged. 



Bittiiim asperutn Cpr., plentiful at 10 fathoms. 



Cadulus fusiformis Pils. & Sharp, a few alive in sandy mud. 



Calliostoma gloriosum Dall. 



Calliostoma splendens (Mke.) Cpr. 



Calliostoma tricolor Gabb. alive in sandy mud. 



Callista subdiaphana Cpr. several young shells alive, one large dead 

 one, one inch in diameter. 



Chrysallida communis C. B. Ads. 



Corbula chittyana C. B. Ads, two specimens alive at 20 fathoms 

 soft mud. " This is exactly like West Indian specimens, and I should 

 question its Pacific coast habitat if it were not that we have one worn 

 valve apparently the same from Lower Cal." Dall. 



Corbula luteola Cpr. 



Crepidula advnca Shy., dead. 



Orepidula navecelloides Nutt. var., two live ones of a very thin cup- 

 shaped form with brown epidermis. 



Cylichna attonsa Cpr. 



Dentalium neohexagonuiit Pils., sandy mud at 10 fathoms. 



Dentalium semipolitnm Cpr. alive with D. neoJiexagonum Pils. 



Drillia canccllata Cpr., 10 to 20 fathoms, fine gray sand. 



Drillia empyrosia Dall., dead. 



Drillia Hemphilli Stearns, 5 to 15 fathoms. 



Drillia inermis Cpr. 



Drillia pedroana Dall., dead. 



Drillia pudica Hds. 



Drillia quisqualis Hds., with D. pudica at 10 fathoms in sandy 

 mud. 



Eucosmia substriata Cpr. 



Eulima, mi cans Cpr. 



Eulima rutila Cpr. 



Eulima thersites Cpr., one live one at 15 fathoms. 



Golems mamillaris, on dead bivalves. 



Halistylus pupoidens Cpr. 



Labiosa undulata Gld., dead. 



Lacuna unifasciata Cpr. 



