| 主な参照 | Fischer, W., M.-L. Bauchot and M. Schneider (eds.), 1987 |
| Appearance refers to | |
| Bones in OsteoBase |
| 専門の臓器 | no special organs |
| 異なる出現 | males alike females |
| 異なる色 | males alike females |
| 意見 |
| 目立つ特徴 | none |
| 身体の側面 (shape guide) | elongated |
| 横断面 | |
| 後頭部の側面 | clearly convex |
| 目の種類 | more or less normal |
| 目/鼻の種類 | more or less normal |
| 口の場所 | terminal |
| Type of scales | cycloid scales |
| 診断 |
Body ribbon-like, gradually tapering to a pointed tail. Large, oblique mouth. Teeth widely spaced on both jaws. First two rays of dorsal fin unsegmented. Caudal fin with median rays longer and free at their tip. Dorsal and anal fins more or less joined to the caudal fin. |
| Ease of Identification |
| 側線 | 中断された: No |
| 側線ラインの長さ | 0 - 0 |
| Pored lateral line scales | |
| Scales in lateral series | |
| 側線ラインより上の規模 | 0 - 0 |
| 側線ラインより下の規模 | 0 - 0 |
| 側線（尾鰭付近）周囲の規模 | |
| ひげ | 0 |
| 鰓(サメ/エイのみ) | absent |
| 鰓篩 | |
| 下部のヒレに | |
| 上部のヒレの上に | |
| 合計 | |
| 脊つい | |
| 肛門前方の | |
| 合計 |
| 属性 | extending over most of the back length |
| 鰭の数 | 1 |
| 小離鰭の数 | Dorsal 0 - 0 |
| Ventral 0 - 0 | |
| 脊椎の合計 | 0 - 0 |
| 全体の鰭 | 67 - 70 |
| 脂びれ | absent |
| 属性 | more or less truncate |
| 鰭の数 | 1 |
| 脊椎の合計 | |
| 全体の鰭 | 60 - 60 |
| 胸の | 属性 more or less normal |
| 脊椎 | |
| 鰭 | |
| 骨盤の | 属性 more or less normal |
| 場所 thoracic behind origin of D1 | |
| 脊椎 | |
| 鰭 |