 The Himalayas are a remote, tectonically active area undergoing climatic fluctuations that provide biogeographic templates for mapping endemic biodiversity. However, substantial data gaps separate the eastern and western regions of the Himalayas, making it opaque to clarify the diversification scenarios. A study evaluated phylogeographic and phylogenetic hypotheses for a widespread fish, Snotrout, Cyprininae, Schizothorax, by sequencing 1,140 base pair of Metrictin DNA Cytochromy, Cytb, from central Himalayas samples and augmented with GenBank sequences. The study found that Snotrout originated in central Asia, dispersed across the King Hi-Tibetan Plateau, then into Bhutan via southward flowing tributaries of the east flowing Yarlink-Sangapo River, YLTR. Headwaters of five large Asian rivers provided dispersal corridors from central into eastern-southeastern Asia. The study also found to distinct Bhutanese phylogenetic groups, suggesting vicarians as a driver of greater species divergences across rather than within basins. The Himalayas are a component of the Earth's largest glacial reservoir and its unique aquatic biodiversity must be defined and conserved through broad transnational collaborations. This article was authored by Binod Regmi, Malisa Douglas, Karma Wangchuk and others. We are article.tv, links in the description below.