Research overview: the naming of the Malayan tiger

The Malayan tiger of the southern Malay Peninsula was formally separated from the Indochinese tiger in the early 2000s based on molecular evidence of genetic distinctiveness. This overview describes how phylogeographic data revealed a break between peninsular and mainland Indochinese populations, prompting recognition of a new subspecies. It discusses the choice of scientific name and the reasoning behind elevating these tigers, as well as how the decision fits the broader multi-subspecies framework. Under the later two-subspecies scheme, the Malayan tiger is subsumed into the mainland form, illustrating how the same population can hold different ranks depending on taxonomic philosophy. The case is a clear example of molecular phylogeography driving subspecies recognition and of the instability that follows competing classification approaches.