What was *Naja nigricincta* previously classified as before elevation to full species status?
A subspecies of *Naja nigricollis*
Historically, *Naja nigricincta*, now recognized as the Western barred spitting cobra, was treated as merely a subspecies belonging to the *Naja nigricollis* complex, the black-necked spitting cobra. The elevation of *N. nigricincta* to full species status signifies that scientific review determined sufficient morphological and genetic divergence had occurred within that lineage. This taxonomic revision indicates that the population had achieved enough reproductive isolation or unique adaptive characteristics within its specific geographic area to be considered an independent evolutionary unit separate from the *nigricollis* group. This process highlights how evolutionary understanding progresses through detailed scientific investigation of differences between related populations.
