George Vasey

Unfortunately, without additional context about the specific author you're interested in, I can't provide all information about them. However, based on the summaries I provided about the books written by William Edward Duellman, Hobart M. Smith, and Juan R. León, here's what I can tell you about each of them:

• William Edward Duellman (1930-2022): A prominent herpetologist (reptile and amphibian biologist). He made significant contributions to the study of amphibian diversity in the Americas, particularly Middle and South America. His books like "The Hylid Frogs of Middle America" and "The Amphibians and Reptiles of Michoacán, México" served as comprehensive resources for researchers.
• Hobart M. Smith (1907-1999): Another herpetologist who likely focused on North American reptiles and amphibians. His work "The Tadpoles of Bufo cognatus Say" sheds light on the life cycle, specifically the tadpole stage, of the Great Plains toad.
• Juan R. León: This information is a bit limited based on the book title. He appears to be a herpetologist with expertise in Middle American amphibians, particularly the Hyla rubra group of tree frogs. His book "The Systematics of the Frogs of the Hyla Rubra Group in Middle America" delves into their classification, morphology, distribution, and evolutionary relationships.