Polygyracea
Subtitle: catalog of species
By: Leonard Richardson.
Contributors: Academy of Natural Sciences of Philadelphia. Dept. of Malacology.
Series: Tryonia -- no. 13.
Publisher: Dept. of Malacology, Academy of Natural Sciences
Published: 1986
Place of publication: Philadelphia
Language: eng
Number of pages: 139
Subjects: Polygyridae -- Catalogs and collections.
Notes: Cover title.

"March 1, 1986."

Includes bibliographies and indexes.
Table of contents: title: Pt. 1, Polygyridae; title: pt. 2. Corillidae; title: pt. 3. Sagdidae.