形态学资料 Chondrostoma nasus
检索表
主要参考文献 Spillman, C.-J., 1961
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 fusiform / normal
横切面
头部背面描绘
眼的类型
口/吻尖的类型
口的位置
鉴别

Diagnosed from congeners in Black and Caspian Sea basins by the following characters: straight mouth in individuals larger than 20 cm SL, lower lip with thick cornified sheath; dorsal fin with 9½ branched rays; anal fin with 10-11½ branched rays; scales on lateral line 52-66 (usually 60-63); eye large, diameter 50-65% of interorbital distance; and side lacking broad dark midlateral stripe. Differs from species of Chondrostoma, Protochondrostoma and Parachondrostoma in Atlantic, Adriatic and Mediterranean basins of France, Italy and Slovenia by having the following features: mouth straight, lower lip with thick cornified sheath; 27-36 gill rakers; anal fin with 10-11½ branched rays; and pectoral, pelvic, anal and caudal fins red (Ref. 59043).

(Ref. 59043). Caudal fin with 19 to 21 rays (Ref. 40476).

鉴定难易度

分节特性 Chondrostoma nasus

侧线 打断: No
侧联机的鳞片 52 - 67
侧联机鳞片数
侧生系列的鳞片
侧联机的鳞片列 8 - 10
侧线下的鳞片列 4 - 6
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 27 - 36
脊椎骨
肛门前
总数 47 - 48

背鳍 (s)

属性 no striking attributes
鳍数 1
离鳍号码 Dorsal   0 - 0
Ventral  0 - 0
棘总数 3 - 3
软条总数 8 - 10
脂鳍 absent

尾鳍

属性 forked; more or less normal

臀鳍 (s)

鳍数 1
棘总数 3 - 3
软条总数 9 - 11

偶鳍

胸鳍 属性  more or less normal
脊椎     1
软条   14 - 17
骨盘的 属性  more or less normal
位置    abdominal  beneath origin of D1
脊椎     2
软条   8 - 9
主要参考文献 (例如 9948)
字汇 ( 例如 cephalopods )
输入者: Sa-a, Pascualita
修订者: Reyes, Rodolfo B.
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