Descriptions of new genera and species of North American frogs / by Spencer F. Baird.
License information
You can use this work for any purpose without restriction under copyright law. Read more about this licence.
Credit
Descriptions of new genera and species of North American frogs / by Spencer F. Baird. Credit: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.. Public Domain Mark