The Ranidae is split into nine sub families. "Ceratobatrachinae" (southeast Asia), "Conrauinae" (Africa), "Dicroglossinae", "Micrixalinae" (India), "Nyctibatrachinae" (India), "Petropedetinae" (Africa), "Ptychadeninae" (Africa), "Raninae" (Australia, South America), and "Ranixalinae" (India). The American bullfrog's genus name comes from the Latin word rana, which means frog. 