Abstract
A Southeast Asian dicroglossid frog, long known as Limnonectes laticeps, has recently been synonymized with L. khasianus. The Bornean population of this species is very divergent acoustically from some conspecific populations from the continent. Furthermore, in the mtDNA phylogeny, the Bornean population is nested in a clade with Bornean populations of the L. kuhlii complex, and not with the continental L. khasianus, which is close to L. tweediei and L. macrognathus. Because the Bornean population is also divergent morphologically from a continental population and the syntypes of Rana laticeps, we describe it as a new species.
