New fossil fresh-water mollusks from Ecuador
By: by William B. Marshall and Edgar O. Bowles
Publisher: Smithsonian Institution, United States National Museum
Published: 1932
Place of publication: Washington, D.C
Language: eng
Subjects: Mollusks, Fossil; Paleontology -- Tertiary; Paleontology -- Ecuador
Other titles: Proceedings of the United States National Museum. v. 82, Art. 5
Notes: Cover title

"No. 2946. -- From the Proceedings of the United States National Museum. Vol. 82, art. 5, pp. 1-7, pl. 1."

Includes bibliographical references