Morphology Summary - Carcharhinus dussumieri
形态学资料 Carcharhinus dussumieri
检索表
Abnormalities
主要参考文献 White, W.T., 2012
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
侧面体型  (shape guide) fusiform / normal
横切面 oval
头部背面描绘
眼的类型
口/吻尖的类型
口的位置
天平类型 placoid scales
鉴别

This small species is distinguished by the following characters: snout relatively long and narrowly rounded to almost pointed; upper anterior teeth are oblique and blade-like, coarsely serrated, with lateral margin deeply notched and with several large and serrated basal cusplets; lower anterior teeth are narrower, slightly oblique, lateral margins notched and usually without large basal serrae, finely serrated; total tooth row counts 27-29/24-30, or 52-59; interdorsal space often without a ridge, 17.9-20.8% TL; first dorsal fin relatively low and not falcate, origin over middle of pectoral-fin inner margin, length 14.3-16.2% TL, 1.4-1.6 times height, inner margin 2.2-2.5 in base; second dorsal fin is much smaller, broadly triangular, height 32-37% of first dorsal-fin height, origin about opposite anal fin origin; anal fin is slightly falcate, height 1.0-1.2 times second dorsal-fin height, base 0.9-1.1 times second dorsal fin base; body colour pale brownish dorsally, whitish ventrally; second dorsal fin with a black blotch on upper third of fin, not extending onto upper surface of body and very well defined from ground colour, while other fins mostly plain; total vertebral counts 123-138; monospondylous precaudal counts 42-48; diplospondylous precaudal counts 20; diplospondylous caudal counts 59-70; precaudal counts 62-68 (Ref. 89954).

鉴定难易度

分节特性 Carcharhinus dussumieri

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
上枝鳃耙
总数
脊椎骨
肛门前 55 - 63
总数 113 - 129

背鳍 (s)

属性
鳍数
离鳍号码 Dorsal   
Ventral  
棘总数
软条总数
脂鳍

尾鳍  (shape guide)

属性

臀鳍 (s)

鳍数
棘总数
软条总数

偶鳍

胸鳍 属性  
脊椎     
软条   
骨盘的 属性  
位置    
脊椎     
软条   
(例如 9948)
(例如 oophagy)
回搜寻页
意见 & 订正
cfm script by eagbayani, 17.10.00, php script by rolavides, 13/03/08 ,  最后修订者: sortiz, 06.27.17