形态学资料 Luciobarbus chelifensis
检索表
Abnormalities
主要参考文献 Brahimi, A., J. Freyhof, A. Henrard and R. Libois, 2017
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
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

Diagnosis: Luciobarbus chelifensis is distinguished from other Luciobarbus species from the African Mediterranean basins by a combination of characters, none of them unique (Ref. 115559). It is distinguished from all other species, except L. leptopogon, by having 41-43 + 1-2 lateral line scales vs. 49-51 + 1-2 in L. biscarensis, 43-47 + 1-2 in L. callensis, 43-45 + 1-3 in L. rifensis and L. setivimensis, 42-45 + 1-2 in L. yahyaouii; it also has a very short anal fin, anal-fin length 18-19% of standard length vs. 19-22% in L. leptopogon and L. setivimensis, 19-21% in L. yahyaouii (Ref. 115559). Luciobarbus chelifensis is also distinguished from L. leptopogon by having a smaller eye, 14-16% of head length vs. 16-20%, a greater body depth at the dorsal-fin origin, 25-31% of standard length vs. 20-27%, a shorter pelvic-fin length, 14-16% of standard length vs. 16-20%, and the last unbranched dorsal-fin ray being serrated along almost its entire length vs. last unbranched dorsal-fin ray serrated along 2/3 of its length; it is further distinguished from L. biscarensis by having 4 unbranched dorsal-fin rays vs. 5, 7.5 scale rows between the lateral line and the dorsal-fin origin vs. 8.5-9.5, 4.5-5.5 scale rows between the lateral line and the pelvic-fin origin vs. 7.5-8.5, and the dorsal-fin origin being situated above the pelvic-fin origin vs. behind; it is further distinguished from L. callensis and L. rifensis by having a wider anal-fin base, 8-10% of standard length vs. 5-8% in L. callensis and L. rifensis; and from L. setivimensis by the last unbranched ray being serrated along almost its entire length, vs. last unbranched ray serrated along 2/3 of its length, and having a narrower interorbital distance, 36-40% of head length vs. 40-44%; it is also distinguished from L. yahyaouii by having always 4 unbranched dorsal-fin rays, vs. usually 5, the last unbranched dorsal-fin ray being serrated along almost its entire length, vs. serrated along 2/3 of its length, and having a shorter pelvic-fin length, 14-16% of standard length vs. 16-19% (Ref. 115559).

Description: A medium-sized species with a moderately long head; body deepest at dorsal-fin origin or about midline between nape and dorsal-fin origin; depth decreasing continuously towards caudal-fin base; greatest body width in front of dorsal-fin base (Ref. 115559). Caudal peduncle compressed, 1.2-1.5 times longer than deep (Ref. 115559). Section of head roundish, flattened on ventral surface; snout rounded; mouth inferior (Ref. 115559). Dorsal-fin origin situated above pelvic-fin origin; anal-fin origin slightly behind vertical of middle between dorsal and caudal-fin origins; anal fin not reaching caudal-fin base; pectoral fin reaching approximately 60-75% of distance from pectoral-fin origin to pelvic-fin origin; pelvic fin reaching vertical of tip of last dorsal-fin ray when folded down; pelvic fin reaching to a short distance in front of anus; posterior dorsal-fin margin straight or slightly convex; posterior pectoral and anal-fin margins complex; caudal fin forked with rounded lobes of equal length; dorsal fin with 4 unbranched and 8.5 branched rays, last unbranched ray serrated along almost its entire length; anal fin with 3 unbranched and 5.5 branched rays; pectoral fin with 15-18 rays and pelvic fin with 7-8 rays (Ref. 115559). Lateral line with 41-43 scales on flank and 1-2 scales on caudal-fin base; between dorsal-fin origin and lateral line 7.5 scale rows and 4.5-5.5 scale rows between pelvic-fin origin and lateral line (Ref. 115559). Pharyngeal teeth in three rows: 4+3+2 (Ref. 115559).

Colouration: Whitish golden on belly, golden to greenish-grey on flank and back; a wide and indistinct bronze stripe along lateral line; paired fins and anal fin yellowish or orange; dorsal and caudal fins grey (Ref. 115559).

鉴定难易度

分节特性 Luciobarbus chelifensis

侧线 打断: No
侧联机的鳞片 41 - 43
侧联机鳞片数
侧生系列的鳞片
侧联机的鳞片列 7.5 - 7.5
侧线下的鳞片列 4.5 - 5.5
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
总数

背鳍 (s)

属性 no striking attributes
鳍数 1
离鳍号码 Dorsal   
Ventral  
棘总数 0 - 0
软条总数 12 - 12
脂鳍 absent

尾鳍

属性 forked; more or less normal

臀鳍 (s)

鳍数 1
棘总数 0 - 0
软条总数 8 - 8

偶鳍

胸鳍 属性  more or less normal
脊椎     0
软条   15 - 18
骨盘的 属性  more or less normal
位置    abdominal  beneath origin of D1
脊椎     0
软条   7 - 8
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意见 & 订正
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