Myxini, the hagfishes
Lampreys are as well, but their class has not been determined.
Hagfish. Hagfish are primitive marine animals that belong to the class Myxini. They are known for their lack of jaws and paired fins.
cartilage fish have paird fins and jaws and they have bones. jawless fish have no paired fins and jaws and they have no bone Cartilage fish = sharks and rays Jawless fish = hagfish and lampre
Jawless fish belong to the group known as Agnatha. This group includes species such as lampreys and hagfish, which are characterized by the absence of jaws and paired fins. Agnatha is considered one of the most primitive classes of vertebrates, and these fish have a unique, elongated body structure and a cartilaginous skeleton.
jaws is a movie about the sharks
Jawless fish have a cartilaginous skeleton and a sleek, eel-like body with naked skin. They do not have paired appendages or jaws. They have a dorsal nerve cord that leads to a distinct brain. Median fins are present.
Jawless fish have slim, eel-like bodies without scales. They have median fins but no paired appendages. They have no jaws, so they generally resemble tubes. Hagfish and lampreys are examples of jawless fish.
The European fish you are referring to is likely the European Sea Bass (Dicentrarchus labrax). It has spiny dorsal fins and jaws that can move to catch prey. It is a popular game fish and is known for its strong fighting ability.
Agnatha means 'no jaws', and they really don't have jaws, although they do have teeth. They also have no stomach, and no boney skeleton. Their skeleton is cartilagineous, like the elasmobranchs.
Examples of agnatha, or jawless fish, include lampreys and hagfish. These fish are characterized by their lack of jaws, paired fins, and scales. They are considered primitive vertebrates and play important roles in marine ecosystems.
The first fish were tiny, only about an inch long, had no jaws or teeth, and no fins. They did have spinal columns, though. An example is Haikouichthys.
Jawless fish and cartilaginous fish have cartilaginous skeletons, and bony fish have skeletons made from bone. Cartilaginous fish and bony fish both have jaws, paired appendages, and whole vertebrae, and jawless fish lack jaws, paired appendages, and often are without whole vertebrae. Cartilaginous fish can have scales or be naked, jawless fish are naked, and bony fish have scales. Bony fish have swim bladders, and cartilaginous fish do not. Jawless fish, cartilaginous fish, and bony fish all have fins, gills, and dorsal nerve cords that lead to a distinct brain. They all also have postanal tails and notochords.
Zeus faber, John Dory