| 主要參考文獻 | Cohen, D.M., T. Inada, T. Iwamoto and N. Scialabba, 1990 |
| 形態描述的性別 | |
| Bones in OsteoBase |
| 特殊器官 | |
| 不同的外表 | |
| 不同的顏色 | |
| 附註 |
| 顯著的特徵 | striking shape of body |
| 側面體型 | elongated |
| 橫切面 | circular |
| 頭部背面描繪 | clearly convex |
| 眼的類型 | more or less normal |
| 口/吻尖的類型 | more or less normal |
| 口的位置 | sub-terminal/inferior |
| Type of scales | ctenoid scales |
| 鑑別 |
Head gently rounded, completely scaled, without strong scute-like ridges and no broad naked areas. Snout rounded, without a sharp point. Light organ lanceolate to narrowly oval, extending forward to midway between the anus and the pelvic fin insertions. |
| 鑑定難易度 |
| 側線 | 1 打斷: No |
| 側線上的鱗片 | |
| 側線上鱗片數 | |
| 側生系列的鱗片 | |
| 側線上的鱗片列 | |
| 側線下的鱗片列 | |
| 尾梗周圍的鱗片 | |
| 觸鬚 | 1 |
| 鰓裂 (僅限於鯊魚/ 魟魚) | |
| 鰓耙 | |
| 在下肢上 | |
| 上枝鰓耙 | |
| 總數 | |
| 脊椎骨 | |
| 肛門前 | |
| 總數 |
| 屬性 | extending over most of the back length |
| 鰭數 | 2 |
| 離鰭號碼 | Dorsal 0 - 0 |
| Ventral 0 - 0 | |
| 棘總數 | 0 - 0 |
| 軟條總數 | |
| 脂鰭 | absent |
| 屬性 |
| 鰭數 | 1 |
| 棘總數 | 0 - 0 |
| 軟條總數 |
| 胸鰭 | 屬性 more or less normal |
| 脊椎 | |
| 軟條 | |
| 骨盤的 | 屬性 more or less normal |
| 位置 thoracic beneath origin of D1 | |
| 脊椎 | |
| 軟條 |