Descriptions of new genera and species of North American frogs / by Spencer F. Baird.

Descriptions of new species of reptiles, collected by the U.S. Exploring Expedition, under the command of Capt. Charles Wilkes, U.S.N. / by Charles Girard.

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Anura, anatomy & histology

Works from the collections

Descriptions of new genera and species of North American frogs / by Spencer F. Baird.

Descriptions of new species of reptiles, collected by the U.S. Exploring Expedition, under the command of Capt. Charles Wilkes, U.S.N. / by Charles Girard.