| jawless | (adj) of animals having no jaw, Ant. jawed |
| jawless vertebrate | (n) eel-shaped vertebrate without jaws or paired appendages including the cyclostomes and some extinct forms, Syn. agnathan, jawless fish |
| 七鳃鳗 | [七 鳃 鳗 / 七 鰓 鰻] lamprey (jawless proto-fish of family Petromyzontidae) [Add to Longdo] |
| 八目鳗 | [八 目 鳗 / 八 目 鰻] lamprey (jawless proto-fish of family Petromyzontidae) [Add to Longdo] |
| 无颌 | [无 颌 / 無 頜] jawless (primitive fish) [Add to Longdo] |
| 盲鳗 | [盲 鳗 / 盲 鰻] hagfish (jawless proto-fish of class Myxini) [Add to Longdo] |
| 円口類 | [えんこうるい, enkourui] (n) (See 無顎類) cyclostomes (eel-like jawless fishes with round mouths used for sucking) [Add to Longdo] |
| 無顎類 | [むがくるい, mugakurui] (n) agnathans (jawless fishes of superclass Agnatha) [Add to Longdo] |
| 翼甲類 | [よくこうるい, yokukourui] (n) pteraspids (extinct armoured jawless fishes) [Add to Longdo] |