形态学资料 Melanocetus johnsonii
检索表
Abnormalities
主要参考文献 Pietsch, T.W., 1986
形态描述的性别
Bones in OsteoBase

性别内容

特殊器官
不同的外表
不同的颜色
附注

稚鱼与成鱼的特徵描述

显着的特徵 other (see diagnosis)
侧面体型 short and / or deep
横切面
头部背面描绘
眼的类型
口/吻尖的类型
口的位置
Type of scales
鉴别

Esca with compressed posterior and anterior crests; anterior margin of vomer nearly straight; minute skin spines present over most of body (Ref. 13608). Branchiostegal rays 6 (Ref. 36493). Caudal-fin rays 8. Scales are cone-shaped, hollow and translucent; with circular base and a free edge pointing towards the caudal region. Left otolith, oblong shape with regular edges, inner face does not present rostrum, antirostrum or cisure (Ref. 41244).

Distinguishing characteristics of metamorphosed female: least outside width between frontals 13.5-28.6% SL; upper jaw with 48-134 teeth, lower jaw 32-78 teeth; length of longest tooth in lower jaw 8.4-25% SL; width of pectoral fin lobe 10.7-17.8% SL; width of escal bulb 4.3-8.6% SL; length of illicium 32.4-60.8% SL; skin with minute spinules over most of body; relatively thick integument 1.55 mm (Ref. 86949). Distinguishing characteristics of metamorphosed male: upper denticular with 9-13 ventrally directed anterior teeth and posteromedial series of 8-11 teeth; lower denticular 12-24 teeth; posterior nostril contiguous with eye; at most 24 olfactory lamellae; skin naked or spinulose (Ref. 86949).

鉴定难易度

分节特性 Melanocetus johnsonii

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
鳃裂 (仅限于鲨鱼/ 鱼)
鳃耙
在下肢上 0 - 0
上枝鳃耙 0 - 0
总数 0 - 0
脊椎骨
肛门前 20 - 20
总数

背鳍 (s)

属性
鳍数 1
离鳍号码 Dorsal   0 - 0
Ventral  0 - 0
棘总数 1 - 1
软条总数 13 - 17
脂鳍 absent

尾鳍

属性 more or less truncate

臀鳍 (s)

鳍数 1
棘总数 0 - 0
软条总数 3 - 5

偶鳍

胸鳍 属性  
脊椎     0
软条   17 - 23
骨盘的 属性  
位置    
脊椎     0
软条   
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