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 | cycloid scales |
鑑別 |
Belly with 5 or 6 pre-pectoral needle-like scutes, none behind, and a series of membrane-like post -pelvic scutes more or less concealed by the scales. Maxilla short, tip blunt; first supra-maxilla large, elongate, more than twice length of second. Pectoral fins wing-like; pelvic fins small; dorsal fin minute, the second unbranched fin ray elongated. A distinct dark blotch behind gill opening. |
鑑定難易度 |
側線 | 打斷: No |
側線上的鱗片 | 50 - 51 |
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 | 25 - 27 |
上枝鰓耙 | |
總數 | |
脊椎骨 | |
肛門前 | |
總數 |
屬性 | greatly reduced or absent |
鰭數 | 1 |
離鰭號碼 | Dorsal 0 - 0 |
Ventral 0 - 0 | |
棘總數 | 0 - 0 |
軟條總數 | 3 - 4 |
脂鰭 | absent |
屬性 | forked; more or less normal |
鰭數 | 1 |
棘總數 | 0 - 0 |
軟條總數 | 51 - 57 |
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 |