Variation and Correlation in the Crayfish: With Special Reference to the Influence of Differentiation and Homology of Parts

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Carnegie Institution of Washington, 1907 - Astacoidea - 70 pages
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Page 73 - FAXON, W. 1884. On the so-called Dimorphism in the genus Cambarus. Amer. Jour. Sci., vol.
Page 35 - Here the correlation coefficients of non-bilateral dimensions are extremely high, as high as in many of the highest human coefficients between bilateral dimensions. As a result of the newly assumed position of the scallop, two formerly largely independent axes have come to vary simultaneously just because they have similar relations to the bottom.
Page 11 - ... is so small as to be entirely negligible for all practical purposes.

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