University of North Dakota. 31 



92 — Pecten teimicostatus. Smooth Scallop. S. I. 



Oft* jNIartlia's Vineyard, Mass. 



93 — Aiioniia <>;labra. Silver-shell, Gold-shell or Jingle- 

 shell. 8.^1. 



Southern coast of New England. 



94 95 — Lithodomiis lithophaga. 



Mediterranean Sea. 



90 97 — llippopus maculatus. Bear's Paw Clam. 



Indian Ocean. 



98 99 — Solen siliqua. Large Razor Shells. 



England. 



100-103 — Unio sp.? In alcohol. 



Red River, Grand Forks, Dakota. 



104-107 — Anodon sp.? In alcohol. 



Red River, Grand Forks, Dakota. 



CLASS GASTEROPODA. 



108 — Helix concava. Land Snail. Toronto, Ontario. 

 Presented by Henry Montgomery. 



109-112— Paludina decisa. River Snail. 



Bed River, Grand Forks, Dakota. 



] 1 3-1 1 5 — Muiex regius. 



Panaina, Central America. 



116 — Murex inflatus. 



117 — Murex sp? Black Murex. 



