👉 Rissoelloidea is a family of marine animals, including the common carp (Carassius auratus) and the red drum (Pteronura brasiliensis). This family primarily inhabits freshwater habitats such as rivers, lakes, and coastal waters. The primary characteristics include a streamlined body shape, large eyes, and a long, slender tail. These fish are known for their ability to mimic other species in order to navigate and catch prey.