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Keywords from Image Description:
North American herpetology or description of the reptiles inhabiting the United States . ri'l onocephalus piseivorus Id JIuvixU ilh''Tlal Plate XIII Illustration biodiversitylibrary org title Cichowski Duval Peter Duval Peter Holbrook John Edwards Lehman Duval Lithrs Sera Biodiversity Heritage Library North American herpetology