كتب ذات صلة

A tentative classification of the palearctic unionids.

Remarks on the number of Unionidae [and] Descriptions of ... new species ...

Observations on the genus Unio together with descriptions of new genera and species ...

Neue untersuchungen �uber die entwickelungsgeschichte unserer flussmushel

• Water reptiles of the past and present
  المؤلفون: Williston, Samuel Wendell
• Water plants a study of aquatic angiosperms.
  المؤلفون: Arber, Agnes (Robertson) 1879-1960
• The wanderings of animals
  المؤلفون: Gadow, Hans