2 public-domain matches

Mollusca Sistematica

Cover of Illustrated index of British shells

Illustrated index of British shells

George Brettingham Sowerby II

Cover of Monography of the family Unionidae, or Naiades of Lamarck (fresh water bivalve shells,) of North America

Monography of the family Unionidae, or Naiades of Lamarck (fresh water bivalve shells,) of North America

T. A. Conrad