👉 Eulimnogammarus is a genus of freshwater fish in the family Cyprinidae, which includes several species native to the Mediterranean Sea and its islands. These fish are known for their unique appearance, including their long, slender bodies with large eyes that resemble those of a cat. Eulimnogammarus can reach lengths up to 20 feet (6 meters) in length, making them among the largest freshwater fish found anywhere on Earth.