👉 Peramalidae is a family of small to medium-sized air-breathing animals in the order Platyhelminthes. The name "peramal" comes from the Greek word "peramalein," which literally means "small hole." This family includes parasites that cause diseases such as malaria, schistosomiasis, and parasites of the fish, especially those that feed on blood. The members of this family are characterized by their small size and ability to survive