| 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] |