Land birds of the Pacific district,

by Belding, Lyman, 1829-1917, Belding, Lyman, 1829-1917
Published 1890

Some Pleistocene and Pliocene freshwater mollusca from California and Oregon

by Hanna, G. Dallas, 1887-1970
Published 1963

Moerch's West Central American molluscan types with a proposal of a new name for a species of Semele,

by Keen, A. Myra (Angeline Myra), 1905-, Keen, A. Myra (Angeline Myra), 1905-1986, Keen, A. Myra (Angeline Myra), 1905-1986-
Published 1966

Early naturalists in the far West,

by Alden, Roland Herrick, 1914-, Ifft, John D (John Dempster), 1914-1991
Published 1943

Description of a new cockle (Mollusca, Bivalvia) from the Pliocene of northern California /

by Roth, Barry, Roth, Barry, Roth, Barry, Talmadge, Robert R.
Published 1975