Abstract

The formulation of concepts of interrelationships of Nearctic crayfishes is presented through a series of anecdotes relating experiences in the field and discoveries in the laboratory. The story begins at the University of Florida in 1931 with a not-so-well preserved crayfish. The scene shifts to the Smithsonian Institution and the Museum of Comparative Zoology, and from these museums, through the branches of a family tree, to the coastal flatwoods of the Florida panhandle, caves in peninsular Florida, streams and seeps of the Appalachian Mountains, a cave in Veracruz, Mexico, the Caney Fork River of the Cumberland Plateau of Tennessee, and the Piedmont Province of Georgia. The tree, finally stripped of its leaves and bearing its branches, depicts the interrelationships, as perceived by the author, of the crayfish families, genera, and subgenera inhabiting the Northern Hemisphere.

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