Geographical catalogue of the Mollusca found west of the Rocky Mountains, between latitudes 33 and 49 north
Cooper, J. G. (James Graham), 1830-1902
Carpenter, Philip P. (Philip Pearsall), 1819-1877
Geological Survey of California.
San Francisco, Towne & Bacon, 1867.
At head of title: Geological Survey of California.
"The following list is based on that published by P.P. Carpenter, in his report to the British Association for the Advancement of Science, 1863."
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