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. 



Biltium asperum 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. 



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

 one, one inch in diameter. 



< 'krysallida 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 Lnwer Cal." Dall. 



Corbula luteola Cpr. 



Crepidvla adtmca Sby., dead. 



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

 shaped form with brown epidermis. 



Cylichna attonsa Cpr. 



Dent a! him neohexagonum Pils., sandy mud at 10 fathoms. 



Dentalium semipolitum Cpr. alive with D. neohexagimum Pils. 



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



Drillia empyrosia Dall.. dead. 



Drillia Hemphilli Stearns, 5 to 15 fathoms. 



Drill iii inermis Cpr. 



Drillia pedroana Dall., dead. 



Drillia pudica rids. 



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

 mud. 



Eucosmia substriata Cpr. 



Eulima mi cans Cpr. 



Eid i ma rut i la Cpr. 



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



Galerus mamillaris, on dead bivalves. 



Halistylus pupoideus Cpr. 



Labiosa undulata Gld., dead. 



Lacuna unifasciata Cpr. 



