| 主要参考文献 | Fischer, W., M.-L. Bauchot and M. Schneider (eds.), 1987 |
| 形态描述的性别 | |
| Bones in OsteoBase |
| 特殊器官 | no special organs |
| 不同的外表 | males alike females |
| 不同的颜色 | males alike females |
| 附注 |
| 显着的特徵 | striking type of mouth |
| 侧面体型 | elongated |
| 横切面 | circular |
| 头部背面描绘 | more or less straight |
| 眼的类型 | more or less normal |
| 口/吻尖的类型 | more or less normal |
| 口的位置 | sub-terminal/inferior |
| Type of scales | ganoid scales |
| 鉴别 |
Snout moderately long and pointed at tip. Lower lip continuous, not interrupted at centre. Barbels halfway between tip of snout and mouth, reaching the latter. Five rows of scutes, dorsal 11-17, lateral 49-70, but usually 55-56 on each side, ventral 10-16, with no smaller plates between dorsal and ventral rows. Color of back grey, flanks lighter, belly white. |
| 鉴定难易度 |
| 侧线 | 打断: No |
| 侧联机的鳞片 | 0 - 0 |
| 侧联机鳞片数 | |
| 侧生系列的鳞片 | |
| 侧联机的鳞片列 | 0 - 0 |
| 侧线下的鳞片列 | 0 - 0 |
| 尾梗周围的鳞片 | |
| 触须 | 0 |
| 鳃裂 (仅限于鲨鱼/ 鱼) | |
| 鳃耙 | |
| 在下肢上 | |
| 上枝鳃耙 | |
| 总数 | 24 - 42 |
| 脊椎骨 | |
| 肛门前 | |
| 总数 |
| 属性 | |
| 鳍数 | 1 |
| 离鳍号码 | Dorsal 0 - 0 |
| Ventral 0 - 0 | |
| 棘总数 | 0 - 0 |
| 软条总数 | 45 - 57 |
| 脂鳍 | absent |
| 属性 | more or less truncate; more or less normal |
| 鳍数 | 1 |
| 棘总数 | |
| 软条总数 | 23 - 37 |
| 胸鳍 | 属性 more or less normal |
| 脊椎 | |
| 软条 | |
| 骨盘的 | 属性 more or less normal |
| 位置 abdominal before origin of D1 | |
| 脊椎 | |
| 软条 |