lamper eel(n = noun.animal) lamprey, lamprey eel - primitive eellike freshwater or anadromous cyclostome having round sucking mouth with a rasping tongue;
is a kind of agnathan, jawless fish, jawless vertebrate
is a member of family petromyzontidae, petromyzontidae
has particulars: petromyzon marinus, sea lamprey

   See Lamprey. [1913 Webster]

blind eel, common eel, conger eel, congo eel, eel, electric eel, freshwater eel, lamprey eel, moray eel, sand eel, sea eel, vinegar eel, wheat eel