Mexichromis festivaMexichromis festiva is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusc in the family Chromodorididae.DistributionThis species was described from Port Jackson, Australia.DescriptionMexichromis festiva is a white chromodorid nudibranch with raised pink spots on the mantle. The edge of the mantle has a broken yellow line superimposed on an opaque white margin. The gill rachis is pink and the gill leaves are white. The outer half of the rhinophores is pink.