Supplement to the Report of the Canadian Arctic Expedition, 
1913-18, Volume VIII, Part A, Mollusks, Recent 
and Pleistocene (1919) 
By WituiAmM Hratzey Dati 
Since the preparation and publication of the report above referred to, a 
a few additional specimens collected by the Northern Party of the expedition 
from 1915 to 1917 have turned up, and these together with a few collected by 
the 1908-09 Arctic expedition, are herein enumerated. 
The localities from which the present lot of specimens were derived are: 
(1) The beaches of Melville island, chiefly at or near Winter harbour, 
about Lat. 74° 50’ N., long. 111° W., collected by Frank C. Hennessey; 
(2) One specimen from Melville island, inland about three miles, near 
Cape Russell, about Lat. 75° 15’ N., long. 117° 30’ W.; taken at a point about 
100 feet above sea level, doubtless carried there by a bird or other extraneous 
agency; 
(3) Station 59b, beach on the west side of Banks island, in about Lat. 73° 
45’ N., collected by V. Stefansson; 
(4) Station 64a, on Ellef Ringnes island, one of the Sverdrup islands, in 
about Lat. 79° N., collected by V. Stefansson. 
The following lists enumerate the species collected :— 
1. WINTER HARBOUR, MELVILLE ISLAND 
Leda (Portlandia) jacksoni Gould. 
Modiolaria substriata Gray. 
Astarte borealis Schumacher. 
Astarte fabula Reeve, young specimens. 
Serripes grénlandicus Gmelin. 
Macoma oneilli Dall, very fine. 
Saxicava pholadis Linné. 
Mya truncata Linné. 
Buccinum hydrophanum Hancock. 
Buccinum belchert Reeve, very rare. 
Colus (Aulacofusus) sabinit Gray. 
Trichotropis borealis Sowerby. 
Margarites umbilicalis Broderip and Sowerby. 
Margarites (Pupillaria) striatus Broderip and Sowerby. 
Margarites (Pupillaria) cinereus Couthouy. 
2. MELVILLE ISLAND, 3 MILES INLAND 
Buccinum polare Gray. 
3. Station 59b. BEACH ON THE WEST SIDE OF BANKS ISLAND 
Chrysodomus solutus Herrman, fragment. 
4. Station 64a, ELLEr RINGNES ISLAND 
Pseudamusium anderson Dall. 
Pseudamusium ringnesia n. sp. 
Yoldtella obesa Stimpson. 
Bathyarca pectunculoides Scacchi. 
Astarte globosa Moller. 
Lora scalarioides G. O. Sars, var. 
Buccinum hydrophanum Hancock. 
Euspira afinis Gmelin. 
Margarites argentatus Gould. - 
A 
