USA 1955, u. A. mit den Beiträgen Shannon, Amphibians Veracruz, Lowe, Herpetofauna Baja California III., Lowe, Urosaurus, Edgren, Natural History Genus Heterodon, Smith, Trans-Isthmus Sceloporus malachiticus, Smith, New Amphibians and Reptiles from Sinaloa and Puebla.
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