The Philippine land mollusks of the genus Opisthoporus
By: by Paul Bartsch.
Series: Smithsonian institution. United States National museum. Bulletin 100,; v. 6, pt. 6
Publisher: U.S. Govt. print. off.
Published: 1932
Place of publication: Washington
Language: eng
Number of pages: 327
Subjects: Opisthoporus.; Mollusks -- Philippines.
Notes: At head of title: Contributions to the biology of the Philippine archipelago and adjacent regions.