This bulletin supplies checklists and keys for identification of Mexican snake species. This work arose partially out of a joint, active interest resulting from

This bulletin supplies checklists and keys for identification of Mexican snake species. This work arose partially out of a joint, active interest resulting from

This volume constitutes the last of a series of checklists and keys to the herpetological fauna of Mexico. The treatment of forms differs little from that of th

This bulletin supplies checklists and keys for identification of Mexican amphiban species. In 1932, Dr. Remington Kellogg initiated a new era in the study of Me