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Marine lampreys of the family Petromyzontidae, along with hagfishes of the family Myxinidae, are the only representatives of the jawless fishes.
These jawless, scaleless, eel-like fish have a cartilaginous skeleton and no paired fins.
Lampreys and hagfishes, often called "roundmouths" because of their round mouths, are best known for their very unappetizing feeding habits.
Hagfish are scavengers, tearing the flesh off carrion, often from the inside out.
Shown in some large public aquariums.
Synonyms:
Bdellostoma hexatrema Müller, 1836
Heptatretus hexatrema (Müller, 183
These jawless, scaleless, eel-like fish have a cartilaginous skeleton and no paired fins.
Lampreys and hagfishes, often called "roundmouths" because of their round mouths, are best known for their very unappetizing feeding habits.
Hagfish are scavengers, tearing the flesh off carrion, often from the inside out.
Shown in some large public aquariums.
Synonyms:
Bdellostoma hexatrema Müller, 1836
Heptatretus hexatrema (Müller, 183