Why was Hydrophis platurus moved from the genus Pelamis to Hydrophis?
To reflect a closer genetic relationship to other sea snakes within the larger Hydrophis genus.
The shift from the monotypic genus *Pelamis* to *Hydrophis* signifies a modern re-evaluation of phylogenetic relationships based on evolutionary closeness rather than solely habitat differences. Placing *H. platurus* within *Hydrophis*, a larger and more diverse genus of sea snakes, suggests that scientists determined this species shares a more recent common ancestry with the snakes currently classified under *Hydrophis* than previously assumed when it was kept separate. This reclassification is vital for ecological studies, as grouping closely related species correctly can illuminate shared evolutionary pressures and dependency networks, especially when mapping conservation requirements across wide oceanic zones like the Indo-Pacific. The move implies the *Pelamis* grouping was potentially more isolated in the evolutionary tree than earlier classifications suggested.
