Acoustic and Karyotypic Evidence for Specific Separation of Polypedates megacephalus from P. leucomystax

The Taiwanese population of Polypedates leucomystax megacephalus is distinct from the Bornean population of P. L leucomystax in adult morphology, mating call, and karyotype. Clear differences in the latter two characteristics suggest the presence of a high degree of genetic differ- entiation between the two populations. The Taiwanese population is therefore regarded as a full species, P. megacephalus Hallowell, 1860. Populations from continental China require further taxo- nomic investigation.