Manual of conchology; structural and systematic.
Subtitle: With illustrations of the species
By: by George W. Tyron, Jr., continued by Henry A. Pilsbry.
Contributors: Pilsbry, Henry Augustus, b. 1862.; Academy of Natural Sciences of Philadelphia.
Publisher: Conchological Section, Academy of Natural Sciences of Philadelphia
Published: 1885
Place of publication: Philadelphia
Subjects: Mollusks; Pulmonata