24 THE NAUTILUS. 
three of the second and one of the last species, represent all the 
Melanellas taken during the four seasons spent on the island. 
They were all dredged. 
Turbonilla lordi E. A. Smith. Dredged occasionally in 25-50 
fathoms. 
Turbonilla canadensis Bartsch (Proc. U.S. N. M., Vol. 52, 
p. 640). The type and eight more specimens dredged in 25-50 
fathoms. 
Odostomia satura Cpr. Odostomia cookeana Bartsch. Odos- 
tomia amtchitkana Dall. Odostomia vancouverensis D. & B. 
Odostomia stephensi D. & B. Odostomia columbiana D. & B. 
Specimens of all of these forms were dredged, though in small 
numbers. Satura and Amtchitkana were seemingly the most 
common. At Waterfall I also secured specimens of O. talpa 
D. & B., grippiana Bartsch, and willetti Bartsch (Proc. U. S. 
N. M., Vol. 52, p. 666). 
Priene oregonense Redf. Common from the low tide line to 
about 15 fathoms. Specimens in former locality are shorter 
and heavier than those found in deeper water. 
Cerithiopsis stephensae Bartsch. A few dredged. Specimens 
of two other, apparently unnamed, species were also taken. 
Bittium filosum Gld.  Bittiwm attenuatum Cpr. Common, the 
former a little above low tide line and the latter in 10-20 
fathoms. 5 ; 
Alvania dinora Bartsch (Proc. U. 8. N. M., Vol. 52, p. 678). 
The type and four additional specimens dredged. 
Alvania carpenteri Wein. Dredged occasionally. 
Rissoina newcomber Dall. Dredged with last. 
Trichotropis cancellata Conr. Rather common from low tide 
line to about 20 fathoms. 
Trichotropis conica Moll. Two specimens dredged in 50 
fathoms. Dr. Dall informs me that this is the first record for 
the Pacific coast. 
Caecum crebricinctum Cpr. Dredged abundantly in 20-30 
fathoms. 
Veremetus squamigerus Cpr. Abundant on rocks near low 
tide line. 
Tachyrhynchus lacteolus Cpr. Rather common 50-60 fathoms. 
