👉 Lophroplectus is a type of fish that feeds on jellyfish, particularly the species "Lophotrichousa" (which are often known as blue jellyfish). This type of fish has a unique adaptation called the "lophocyst," which is a small, round sac located at the base of their body. The lophocyst contains a variety of digestive enzymes that aid in breaking down and digesting the jellyfish.