1. American seashells;Abbott,1974
2. New northern extension of the range of Assiminea modesta;Baranowski;Nautilus,1971
3. Distribution and abundance of the intertidal prosobrach snails Littorina scutulata and Littorina sitkana;Behrens,1971
4. Competitive displacement of native mud snails by introduced periwinkles in the New England intertidal zone;Brenchley;Biol. Bull.,1983
5. History, biogeography and ecology of introduced marine invertebrates of the Pacific coast of North America;Carlton,1979