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Teleostei >
Siluriformes (Catfishes) >
Akysidae (Stream catfishes) > Akysinae
Etymology: similis: The specific name is derived from the Latin similis (resembling), in reference to its close resemblance to Akysis pseudobagarius.
More on authors: Ng & Kottelat.
Environment: milieu / climate zone / 深度上下限 / distribution range
生态学
; 淡水 底中水层性. 熱帶
Asia: Mekong basin in southern Viet Nam.
亞洲: 在越南南部的湄公河流域。
大小 / 重量 / 年龄
成熟度: Lm ?  range ? - ? cm
Max length : 5.1 cm SL 雄鱼/尚未辨别雌雄; (Ref. 55975)
简单描述
检索表 | 型态特徵 | 形态测量图
背的软条 (总数) : 6; 臀鳍软条: 9 - 10; 脊椎骨: 31 - 32. Distinguished from all its congeners by the following unique combination of characters: slender body (body depth at anus 8.2-10.3% SL; depth of caudal peduncle 3.5-4.5% SL); extremely narrow head (head width 17.5-20.2% SL); small and close-set eyes (eye diameter 6-10% HL; interorbital distance 20-26% HL); short nasal barbels (11-17% HL); the presence of 6-8 serrae along the posterior edge of the pectoral spine and 8-9 branchiostegal rays; and caudal fin strongly forked with pointed lobes (Ref. 30226).
Body shape (shape guide): elongated.
在独特的组合特徵之后与它所有的同类区分了藉由: 细长的身体 (在肛门 8.2-10.3% SL 的体高; 尾柄 3.5-4.5% SL 的深度); 非常狭窄的头部 (头部宽度 17.5-20.2% SL); 小的而且靠拢在一起眼 (眼直径 6-10% HL; 眼间距 20-26% HL); 短的鼻触须 (11-17% HL); 那有 6-8个锯齿沿着胸棘与 8-9个鳃条骨的后缘; 而且强烈地分岔的尾鳍有尖的叶.(参考文献 30226)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
亞洲: 在越南南部的湄公河流域。
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): 3.6 ±0.6 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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