Excerpt from An Annotated Checklist and Key to the Amphibia of Mexico In preparing this summary we have followed, with some exceptions, the style of our Annotated Checklist and Key to the Snakes of Mexico. 2 The present account differs chiefly in the natural arrange ment of the species and in the distribution of the keys, Which instead of being united are scattered through the list in appropriate places. The keys are to transformed specimens, except where otherwise indicated, since the larvae are too incompletely known to permit the construction of useful keys. Likewise the eggs of relatively few forms are known. Juvenile transformed specimens will not be identifiable in all cases, since important characters may not be evident in them. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.