Nudibranch Coryphella trophina (Bergh, 1890) (Gastropoda, Nudibranchia) Uses Twice Stolen Nematocysts for Its Defense

Most nudibranchs feed on hydroids and anemones and utilize kleptocnidae, which are stinging capsules stolen from eaten victims, for their own defense. The nudibranch Coryphella trophina (Bergh, 1890) was found to eat other nudibranchs. Stinging capsules that the predator uses for its defense have been stolen twice: first by mollusks feeding on cnidarians and then by C. trophina eating the mollusks.