Monography of the family Unionidae or, Naiades of Lamarck fresh water bivalve shells of North America. This book, "Monography of the family Unionidae. or, Naiades of Lamarck fresh water bivalve shells of North America", by T.A. Conrad, is a replication of a book originally published before 1836. It has been restored by human beings, page by page, so that you may enjoy it in a form as close to the original as possible. This book was created using print-on-demand technology. Thank you for supporting classic literature.