| 主要參考文獻 | Whitehead, P.J.P., G.J. Nelson and T. Wongratana, 1988 |
| 形態描述的性別 | |
| Bones in OsteoBase |
| 特殊器官 | no special organs |
| 不同的外表 | males alike females |
| 不同的顏色 | males alike females |
| 附註 |
| 顯著的特徵 | none |
| 側面體型 | elongated |
| 橫切面 | compressed |
| 頭部背面描繪 | more or less straight |
| 眼的類型 | more or less normal |
| 口/吻尖的類型 | more or less normal |
| 口的位置 | terminal |
| Type of scales | scales embedded or partly/completely absent |
| 鑑別 |
Mouth small, pre-maxillae absent or minute and toothless; maxilla very short, just reaching to front border of eye, with two supra-maxillae; articulation of lower jaw under hind border of pupil or just behind. Dorsal fin origin well behind midpoint of body; anal fin origin under first quarter of dorsal fin base. In life translucent or even transparent. |
| 鑑定難易度 |
| 側線 | 打斷: No |
| 側線上的鱗片 | 0 - 0 |
| 側線上鱗片數 | |
| 側生系列的鱗片 | |
| 側線上的鱗片列 | 0 - 0 |
| 側線下的鱗片列 | 0 - 0 |
| 尾梗周圍的鱗片 | |
| 觸鬚 | 0 |
| 鰓裂 (僅限於鯊魚/ 魟魚) | |
| 鰓耙 | |
| 在下肢上 | |
| 上枝鰓耙 | |
| 總數 | 18 - 19 |
| 脊椎骨 | |
| 肛門前 | |
| 總數 |
| 屬性 | no striking attributes |
| 鰭數 | 1 |
| 離鰭號碼 | Dorsal 0 - 0 |
| Ventral 0 - 0 | |
| 棘總數 | 0 - 0 |
| 軟條總數 | |
| 脂鰭 | absent |
| 屬性 | forked; more or less normal |
| 鰭數 | 1 |
| 棘總數 | 0 - 0 |
| 軟條總數 | 12 - 14 |
| 胸鰭 | 屬性 more or less normal |
| 脊椎 0 | |
| 軟條 | |
| 骨盤的 | 屬性 more or less normal |
| 位置 abdominal before origin of D1 | |
| 脊椎 0 | |
| 軟條 7 - 7 |