Lampreys are in the superclass Agnatha, jawless fish. They are of the class Cyclostomata, which includes hagfish, as opposed to the extinct Ostracoderms.
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.
Hagfish and lampreys.
The lamprey the hagfish and the worm
Lamprey
Agnathas are a class of jawless fish in the phylum chordata. The group includes species such as hagfish and lamprey.
Hagfish and lampreys are apart of Agnatha which means jawless fish. Hagfish are a parasite fish but can be free swimming. Both jawless fish will feed on carcasses on the bottom of the seafloor.
Lamprey, hagfish suck body fluids from the host fish after rasping a hole in the side of the body.
Plenty! eg. sharks, lamprey, hagfish, worms, flat worms, sponges, snails, octopus.....
An agnathan is a variety of jawless fish of the superclass Agnatha - of which two groups survive today - lampreys and hagfish - comprising around 120 species in all.
Most fish are not jawless. There is a small group of very primitive fish called Jawless fish (Agnatha). However, they make up a very small proportion (<1%) of the fish species on earth. Jawless fish are things like lamprey and hagfish. All other fish, like trout, salmon, tuna, sharks, rays, cichlids, goldfish, etc, etc, have jaws. See the related link for more information on the primitive jawless fish.
Yes, lampreys are jawless fish. So are hagfish. Lampreys and hagfish have slender, eel-like bodies without scales. They do not have paired appendages, and, of course, they lack jaws. They have cartilaginous skeletons and often do not have vertebrae.