Marcus, 1970 Verconia norba is a species of colorful sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the family Chromodorididae.

In this species the mantle can vary in color from reddish purple to pinkish orange.

Just inside the mantle border are a series of reddish purple streaks or smudged marks which are a more vibrant purple than the main body color.

This patch sometimes encircles the gills and extends anteriorly between the rhinophores.

Identifying individual purple sea slugs within the genus Noumea can be challenging because purple forms exist in several related species.