Related Books

Variation and correlation in the crayfish with special reference to the influence of differentiation and homology of parts.

On the so-called Dimorphism in the Genus Cambarus.

Observations on the Astacidae in the United States National Museum and in the Museum of Comparative Zoology with descriptions of new species.

Notes on North American Crayfishes, family Astacidae.

• Une écrevisse nouvelle du Mexique, Cambarus (Cambarus) bouvieri nov. sp.
  Author(s): Ortmann, A. E.
• Procambarus, a new subgenus of the genus Cambarus
  Author(s): Ortmann, A. E.
• Papers on Unionidae
  Author(s): Ortmann, A. E.

• The willows of Ohio a monograph.
  Author(s): Griggs, Robert Fiske
• Transactions of the Maryland Academy of Science and Literature.
  
• Transactions of the Maryland Academy of Sciences.