The flameback is a species of brightly colored sea slug (nudibranch), native to the west coast of South America. Like in most sea slugs, the bright coloration is a warning to potential predators that it is bad tasting and potentially even poisonous to some animals. The flameback is carnivorous, eating soft corals and other sessile invertebrates on rocky reefs. Like most nudibranchs, this species incorporates toxic chemicals or stinging cells from its prey into its own skin. This ability provides the flameback with a defense mechanism against predation.