The amphibians and reptiles collected by Zoltán Kaszab in Mongolia between 1963Mongolia between -1968 in the Collection of Amphibians and Reptiles of the Hungarian Natural History Museum, are reviewed. The 786 studied specimens belong to 15 species (Bufotes pewzowi, Strauchbufo raddei, Rana amurensis, Alsophylax pipiens, Paralaudakia stoliczkana, Phrynocephalus versicolor, P. kulagini, P. hispidus, Eremias argus, E. arguta, E. multiocellata, E. dzungarica, E. przewalskii, Elaphe dione, Gloydius halys) representing 57% of amphibian and reptile species of Mongolia. Our identification and map representation provide new distribution data for the fitteen species and represent a source of information for the status of the Mongolian herpetofauna in the mid-20th century.