主要參考文獻 | Whitehead, P.J.P., 1985 |
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 | striking fins |
側面體型 | fusiform / normal |
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 |
Body moderately deep; belly with 15 to 18 + 8 to 12 scutes. Mouth small. Last dorsal fin ray long, about equal to distance from snout tip to mid-pectoral fin or beyond; anal fin relatively short. Scales relatively large, regularly arranged. A dark spot behind gill opening. Gill rakers fine and numerous (Ref. 188). Body bright silvery, especially on sides, opercles and underparts. Back and upper sides bluish black or dark olivaceous (Ref. 37032). |
鑑定難易度 |
側線 | 打斷: No |
側線上的鱗片 | |
側線上鱗片數 | |
側生系列的鱗片 | 41 - 48 |
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 | 16 - 20 |
觸鬚 | 0 |
鰓裂 (僅限於鯊魚/ 魟魚) | |
鰓耙 | |
在下肢上 | |
上枝鰓耙 | |
總數 | 440 |
脊椎骨 | |
肛門前 | |
總數 | 43 - 44 |
屬性 | last fin rays very elongated |
鰭數 | 1 |
離鰭號碼 | Dorsal 0 - 0 |
Ventral 0 - 0 | |
棘總數 | 0 - 0 |
軟條總數 | 11 - 15 |
脂鰭 | absent |
屬性 | forked; more or less normal |
鰭數 | 1 |
棘總數 | 0 - 0 |
軟條總數 | 17 - 27 |
胸鰭 | 屬性 more or less normal |
脊椎 0 | |
軟條 12 - 17 | |
骨盤的 | 屬性 more or less normal |
位置 abdominal beneath origin of D1 | |
脊椎 0 | |
軟條 8 - 8 |