分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Siluriformes (Catfishes) >
Akysidae (Stream catfishes) > Akysinae
Eponymy: Dr Michael Hardman (d: 1978) is a British ichthyologist and herpetologist at the Natural History Museum of Los Angeles County. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / 深度上下限 / distribution range
生态学
; 淡水 居于水底的. 热带
Asia: Chao Phraya River in Thailand.
亚洲: 在泰国的湄南河。
大小 / 重量 / 年龄
成熟度: Lm ? range ? - ? cm
Max length : 4.2 cm SL 雄鱼/尚未辨别雌雄; (Ref. 55975)
背棘 (总数) : 1; 脊椎骨: 34 - 35. Distinguished from all congeners in having highly elevated supraoccipital spine and nuchal plate. Differs further from congeners in having a unique combination of the following characters: highly contrasting light brown patches on a chocolate brown body; lack of filamentous extensions to the first pectoral-fin element; presence of 5-6 serrations on the posterior edge of pectoral spine; eye diameter 6-9% of head length; branchiostegal membranes meeting at isthmus ventrally; outer mandibular barbels reaching middle of pectoral-fin base; and rounded tubercles on the tip of the snout and dorsal surface of neurocranium (Ref. 55975).
Body shape (shape guide): elongated.
与所有的同类有高度升高的上枕骨棘与颈背的碟区分了。 在有一个方面进一步不同于同类下列特征的独特组合: 高度地对比在一个褐色身体上的淡褐色区块; 对第一个胸鳍要素的缺乏丝状的延长; 在胸棘的后缘上有 5-6 锯齿; 眼直径 6-9% 的头长; 鳃盖薄膜腹地在峡部碰到; 外部的颚触须达到胸鳍基底的中央; 而且在吻尖与脑颅的背面上圆的小瘤.(参考文献 55975)
描述: 背鳍鳍条 I,4,i 或 I,5; 臀鳍棘条 iii,5,i ， iv,5,i, 或 iv 6; 胸鳍鳍条 I,7 或我,6 岁,i; 腹鰭鰭條 i,5.
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
亚洲: 在泰国的湄南河。
Ferraris, C.J. Jr., 2007. Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types. Zootaxa 1418:1-628. (Ref. 58032)
世界自然保护联盟红皮书 (Ref. 130435: Version 2025-1)
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Estimates based on models
Phylogenetic diversity index (参考文献
82804): PD
50 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
营养阶层 (参考文献
69278): 3.5 ±0.6 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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