On the basis of the presence of a call distinct from that of Crinia laevis (Gunther) and the absence of hybrids in sympatry, the species C. victoriana Boulenger is reestablished. A detailed account of the morphology, breeding biology, life history, and geographical distribution of these species is given. Their zoogeographical position in relation to the Bassian subregion is considered and a possible pattern of speciation advanced.