Collected by Robert E. C Stoarns, 



Saxidomus Nuttalli, Conr, 



Vancouver Island. 

 Collected by Robert E, C. Stearns. 



Rupellaria lamellifera, Conr 



Montereyj California. 

 Collected by Robert E. C. Stearns, 



Petricola carditoides, Conr. 



Monterey, California. 

 Collected by Robert E, C- Steams. 



Chama exogyra, Conr, 



San Diego, California. 

 Collected by Robert E. C. Steams. 



Chama pellucida, Sbj/. 



Monterey, California. 



Collected by Robert E, C. 8tearna, 



.Cardiiim corbis, Martin, 



California. 

 Collected by Robert E. C. Steams. 



Lazaria subquadrata, Cpr. 



Monterey, Calilbrnia. 



Collected by Robert E, C, Steams. 



Lucina Calif ornica, Conr, 



Monterey, California. 

 Collected by Robert E. C. Steams. 



Diplodonta orbella, Gld. 



Monterey, California, 

 Collected by Robert E. C. Steams. 



Kellia Laperousii, Desk. 



Monterey, California. 

 Collected by Robert E. C. Stearns. 



Mytilus Califoniianus, Conr. 



California. 

 Collected by Robert E, C. Stearns. 



Septifer bifurcatus, Rve. 



Monterey, California. 



Collected by Robert E. C. Steamw, 



Modiola fornicata, Cpr. 



Monterey, California, 

 Collected by Robert E. C. Stearns. 



Adula falcata, Gld. 



Monterey, California. 

 Collected by Robert E. C. Stearns. 



Adula stylina, C^jr. 



Lobitas, California. 

 Collected by Robert E, C. Steams. 



Pecten latiauritus, Conr. 



Monterey, California, 

 Collected by Robert E. C. Steams, 



Hinnites giganteus, Gray. 



Baulines Bay, California. 

 Collected by Robert E, C. Steams. 



Bulla nebulosa, Gld. 



San Diego, California. 



Collected by Robert E. C. Steams. 



Tornatella punctociielata, Cpr 



Monterey, California. 

 From Robert E. C. Stearns. 



Helix Vancouverensis, IjCa. 



Sitka. 

 Collected by Robert E. C. Stearns. 



Helix Dupetitliouarsi, Desh. 



Monterey, California. 



Collected by Robert E. C. Stearns. 



Helix Californiensis, Ltca. 



Monterey, California. 



Collected by Robert E. C. Stearns. 



Helix arrosa, Gld. 



San Mateo County, California. 

 Collected by Robert E. C. Stearns. 



Helix Columbiana, Ltca. 



California — Sitka. 



i-> 



I521ii) 



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