The white-edged nudibranch, Coryphella capensis, previously known as Fjordia capensis, is a species of sea slug, specifically an aeolid nudibranch, a colourful sea slug.

[6] The white-edged nudibranch is a slender pale-bodied aeolid with numerous dark red cerata all edged with white.

It has a pair of elongated oral tentacles having an opaque white stripe.

The white-edged nudibranch eats the hydroid and passes its nematocysts unharmed through its digestive system to the tips of its cerata.

It is probable that the bright colours of the white-edged nudibranch serve to advertise to predators that it is toxic.