Reprint of the original, first published in 1875.

Reprint of the original, first published in 1875.

Seven years elapsed between the publication of a paper by E.D. Cope titled "Check list of North American Batrachia and Reptilia" and the addition of sufficient reptilian specimens, along with some nomenclature changes, that suggested an update to the information might be appropriate. The present paper was prepared to bring the subject up to date.

This is a general work on the amphibians of North America that embraces the results of a thorough study of the characters of the species, with their variatiions, which has been rendered effective by the very full collection contained in the National Museum, and which this work illustrates.

Reprint of the original, first published in 1877.