Turtles of the Chicago area / by Karl P. Schmidt, Curator of Amphibians and Reptiles.

no.14(1938)

Phylogeny of the chelydrid turtles : a study of shared derived characters in the skull / Eugene S. Gaffney --.

v.33:no.9(1975)

The terrestrial air-breathing mollusks of the United States, and the adjacent territories of North America: described and illustrated by Amos Binney. Ed. by Augustus A. Gould ...

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