b4 A Canadian Arctic Expedition, 1913-18 
NortH SOMERSET ISLAND 
Ovicapsules of Bucconum. 
PoNnDs INLET, BAFFIN ISLAND 
Saxicava pholadis L. 
Modilaria laevis Gray. 
Port BuRWELL, HUDSON STRAIT 
Venericardia borealis Couthouy. 
Cardium ciliatum Fabricius. 
Macoma oneillt Dall, yo. 
Macoma calcarea Gmelin. 
Mya truncata L. 
Kennerlia glacialis Leach. 
Astarte bankst Leach. 
Buccinum tenue Gray. 
Margarites cinereus Couthouy. 
Yoldia limatula Say. 
Admete couthouyt Jay (not viridula). 
Velutina laevigata L. 
Margarites helicinus Phipps. 
Trichotropis borealis Sowerby. 
Tachyrhynchus reticulatus Mighels. 
Nucula tenuis Montagu. 
Modtolaria nigra Gray. 
Anachis cf. halieeti Jeffreys. 
Modiolara substriata Gray. 
Crenella faba Fabricius. 
Astarte borealis Schumacher, yo. 
Margarites acuminatus Migh. and Ads. (rare shell). 
Astarte borealis Schumacher. 
Puncturella princeps Mighels. 
Serripes grénlandicus Gmelin. 
Machaeroplaz varicosus Mighels. : 
SOUTHAMPTON ISLAND, HUDSON BAY 
Buccinum ? ciliatum Fabricius. 
Buccinum undatum L. 
Buccinum cyaneum Hancock. 
Buccinum ? tenue Gray. 
Acmaea emydia Dall. 
Astarte borealis Schumacher. 
Saxicava artica L, 
Mya truncata L. 
Mytilus edulis L. 
Pecten islandicus Moller, 
