The Crayfish of Nebraska

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Page 108 of 148

100 BODY MEASUREMENTS AND RATIOS These crayfishes have extensive ranges across North America. It is often of interest to workers in different areas to be able to compare the crayfishes that they see with those found elsewhere. This section contains measurements of the five native crayfishes of Nebraska. The measurements taken are illustrated in the images below. Separate tables are provided for Form I males, Form II males and females. The ratios of one body dimension versus another is sometimes useful in identification. These can also vary in different parts of the species' range. A range of ratios is provided in the tables.

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