Venomous reptiles of the United States, Canada, and Northern Mexico von Ernst, Carl H., Ernst, Evelyn M.

Turtles of the world von Ernst, Carl H., Barbour, Roger W.

Observations on the algal genus Basicladia and the red-billied turtle, Chrysemys rubriventris von Ernst, Carl H., Norris, James N.

Venomous reptiles of the United States, Canada, and Northern Mexico von Ernst, Carl H., Ernst, Evelyn M.

Turtles of the United States and Canada von Ernst, Carl H.

Snakes of the United States and Canada von Ernst, Carl H.

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Venomous reptiles of North America von Ernst, Carl H.

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Catalog of type specimens of recent Crocodilia and Testudines in the National Museum of Natural History, Smithsonian Institution von Reynolds, Robert P., Gotte, Steve W., Ernst, Carl H.

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Venomous reptiles of the United States, Canada, and Northern Mexico von Ernst, Carl H., Ernst, Evelyn M.