PUCPR Search for 'an:110442'

A review of the North American freshwater snail genus Pyrgulopsis (Hydrobiidae)

By Hershler, Robert..
Washington, D.C. Smithsonian Institution Press 1994 .
iii, 115 p. 28 cm..

By Kabat, Alan R..
Washington, D.C. Smithsonian Institution Press 1993 .
94 p. 28 cm..

By Hershler, Robert..
Washington, D.C. Smithsonian Institution Press 1996 .
p. cm.

By Hershler, Robert..
Washington, DC Smithsonian Institution Press 1998 .
p. cm.

Washington, D.C. Smithsonian Institution Press 2002 .
iii, 405 p. 28 cm..