An order of marsipobranchs including the lampreys. The suckerlike moth contains numerous teeth; the nasal opening is in the middle associated with the head above, nonetheless it cannot interact with the lips. See cyclostoma, and lamprey.
A primary subdivision of myzonts, marsipo-branchiates, or Cyclostomata, including forms with all the roofing for the mouth or palate entire or imperforate, the single nasal duct maybe not penetrating it.
lampreys as distinguished from hagfishes
Definition for "hyperoartia"
An order of marsipobranchs including the lampreys. The…