👉 Phreatichthys is a genus of fish in the family Cyprinidae, commonly known for its distinctive phrethoid teeth and its widespread distribution across various aquatic habitats, including lakes, rivers, and oceans. It's characterized by its large size and robust body structure, making it an excellent candidate for inclusion in our list as it includes a wide range of species with diverse physiologies, from small fish to larger freshwater or marine species.