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A new species in the Tylototriton asperrimus group (Caudata: Salamandridae) from central Laos

Bryan L. Stuart, Somphouthone Phimmachak, Niane Sivongxay, William Robichaud

Abstract

A new species in the morphologically conservative Tylototriton asperrimus group is described from Khammouan Province, Laos. Molecular phylogenetic analysis of mitochondrial DNA confirms its placement in the T. asperrimus group. Tylototriton notialis sp. nov. is diagnosable in mitochondrial DNA, nuclear DNA, and morphology from its congeners. The new species represents the first record of the genus from Laos, and is the southernmost known member of the T. asperrimus group.

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Available abstract

Key concepts: Salamandridae, Biology, Caudata, Mitochondrial DNA, Species group, Zoology, Phylogenetic tree, Genus