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Teleostei >
Cypriniformes (Carps) >
Cyprinidae (Minnows or carps) > Acrossocheilinae
Etymology: Onychostoma: Greek, onyx, -ychos = nail + Greek, stoma = mouth (Ref. 45335).
Eponymy: Dr Johann Gerhard Heinrich Carl Gerlach (1843–1913) was a German physician who lived for part of his life in Hong Kong from where he sent a collection of fishes, including the holotype of this species, to Senckenbergischen Naturforschenden [...] (Ref. 128868), visit book page.
More on author: Peters.
Taxonomic Remarks
Genus Eschmeyer, pers. comm.
环境：氛围 / 气候带 / 深度上下限 / 分布范围
生态学
; 淡水 底中水层性. 亞熱帶的
Asia: Reported from the Chao Phraya and Mekong basins (Ref. 26336) and Annam (Ref. 26580), Nam Ma basin, Red River and Nanpangjiang basins (Ref. 43281).
亞洲: 記錄來自湄南河與湄公河流域 (參考文獻 26336) 與安南 (參考文獻 26580) ， Nam Ma 流域，紅河與南盤江流域了。 (參考文獻 43281)
大小 / 重量 / 年龄
成熟度: Lm ? range ? - ? cm
Max length : 31.6 cm SL 雄鱼/尚未辨别雌雄; (Ref. 82789); common length : 16.5 cm SL 雄鱼/尚未辨别雌雄; (Ref. 35840); 最大体重: 1.0 kg (Ref. 9671)
With wide mouth, width about 1.5 times in maximum head width; adults without barbels; last simple dorsal ray strong and serrated posteriorly (in specimens over about 10 cm SL); caudal peduncle 1.7-2.7 times longer than deep (Ref. 43281).
Body shape (shape guide): fusiform / normal.
有宽的嘴, 宽度大约 1.5 倍最大的头部宽度; 成鱼没有触须; 最后的单一背鳍鳍条强的而且在后部地锯齿状的;(在超过大约的标本中 10 公分 SL) 尾柄深地的 1.7-2.7 倍.(参考文献 43281)
Adults live in rapid current of mountain streams.
生活在山地溪流的迅速水流。
生命周期和交配行为
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
亞洲: 記錄來自湄南河與湄公河流域 (參考文獻 26336) 與安南 (參考文獻 26580) ， Nam Ma 流域，紅河與南盤江流域了。 (參考文獻 43281)
Huang, H. et al., 1987. The freshwater fishes of China in coloured illustrations. The freshwater fishes of China in coloured illustrations. (Ref. 9671)
世界自然保护联盟红皮书 (Ref. 130435: Version 2025-2 (Global))
人类利用
渔业: 商业性
工具
特别资料
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网络资源
基于模型的估算
系统发育多样性指数 (参考文献
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00851 (0.00516 - 0.01405), b=3.09 (2.95 - 3.23), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
营养阶层 (参考文献
69278): 2.7 ±0.3 se; based on size and trophs of closest relatives
回复力 (参考文献
120179): 中等的, 族群倍增时间最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
渔业脆弱性 (Ref.
59153): Low to moderate vulnerability (29 of 100).
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