Title Information
Gov. SI 1.27:554
Copies In
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Serial
TITLE:
A review of the North American freshwater snail genus Pyrgulopsis (Hydrobiidae) / Robert Hershler.
AUTHOR:
Hershler, Robert
SERIES:
Smithsonian contributions to zoology ; no. 554
PUBLISHED:
Washington, D.C. : Smithsonian Institution Press, 1994.
DESCRIPTION:
iv, 115 p. : ill., maps ; 28 cm.
NOTES:
Includes bibliographical references (p.111-115).
SUBJECT:
Pyrgulopsis--North America--Classification
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