主要参考文献 | Morrow, J.E., 1980 |
形态描述的性别 | |
Bones in OsteoBase |
特殊器官 | other |
不同的外表 | different morphology in juveniles and adults |
不同的颜色 | |
附注 |
显着的特徵 | |
侧面体型 | elongated |
横切面 | |
头部背面描绘 | clearly concave |
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 |
Characterized by a single row of 1 to 4 bony plates along the midventral line between the anus and the anal fin, and about 33 to 35 rays in the dorsal fin. Dorsal arises at posterior third of the total length; anal fin arises under posterior part of dorsal; pectorals originate low on the body just behind gill opening and are large and rounded; pelvic fins arise near the anus. Generally olive to dark green, lower parts more or less whitish green; a longitudinal olive-green stripe on side between lateral and ventrolateral plates, another on midventral surface; fins grayish to pale green (Ref. 27547). Barbels usually situated closer to mouth than to snout tip; coloration of scutes along side paler than skin (Ref. 86798). |
鉴定难易度 |
侧线 | 打断: No |
侧联机的鳞片 | |
侧联机鳞片数 | |
侧生系列的鳞片 | |
侧联机的鳞片列 | |
侧线下的鳞片列 | |
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 | |
脊椎骨 | |
肛门前 | |
总数 |
属性 | no striking attributes |
鳍数 | 1 |
离鳍号码 | Dorsal 0 - 0 |
Ventral 0 - 0 | |
棘总数 | 0 - 0 |
软条总数 | 33 - 35 |
脂鳍 | absent |
属性 | heterocercal; more or less normal |
鳍数 | 1 |
棘总数 | 0 - 0 |
软条总数 | 22 - 28 |
胸鳍 | 属性 very large , lobe-like |
脊椎 | |
软条 | |
骨盘的 | 属性 more or less normal |
位置 abdominal before origin of D1 | |
脊椎 | |
软条 |