分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Siluriformes (Catfishes)
鯰形目 (Catfishes) >
Akysidae (Stream catfishes)
河鯰科 (Stream catfishes) > Akysinae
Etymology: subtilis: The specific name is derived from the Latin subtilis (slender), referring to its relatively long and slender body (Ref. 30226).
More on authors: Ng & Kottelat.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性. 熱帶
Asia: known only from the Mekong basin in Laos and Thailand.
亞洲: 已知只來自在寮國與泰國的湄公河流域了。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 4.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 30857)
簡短描述
型態特徵 | 形態測量圖
背的軟條 (總數): 6; 臀鰭軟條: 9; 脊椎骨: 35 - 36. Distinguished from all its congeners by the following unique combination of characters: slender body (body depth at anus 11.9-13.5% SL); depth of caudal peduncle 5.5-5.8% SL; extremely narrow head ( head width 17.5-18.7% SL); small and close set-eyes (eye diameter 7-9% HL; interorbital distance 33-38% HL); short nasal barbels (23-30% HL); possession of 35-36 total vertebrae; presence of 1+ 3 gill rakers on the first branchial arch; 5-6 serrae on the posterior edge of the pectoral spine; 8 branchiostegal rays; caudal fin strongly forked with pointed lobes (Ref. 30226). Body brown with 2 dark patches along dorsum at base of dorsal and adipose fins (Ref. 43281).
在獨特的組合特徵之後與它所有的同類區分了藉由: 細長的身體 (在肛門 11.9-13.5% SL 的體高); 尾柄 5.5-5.8% SL 的深度; 非常狹窄的頭部 ( 頭部寬度 17.5-18.7% SL); 小的而且靠攏在一起-眼 (眼直徑 7-9% HL; 眼間距 33-38% HL); 短的鼻觸鬚 (23-30% HL); 35-36個總脊椎骨的所有物; 在第一個鰓弓上有 1+3個鰓耙; 在胸棘的後緣上的 5-6 鋸齒; 8個鰓條骨; 尾鰭強烈分叉有尖的葉.(參考文獻 30226) 身體褐色的有 2個深色的區塊在背鰭基底與脂肪的鰭沿著背面.(參考文獻 43281)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
亞洲: 已知只來自在寮國與泰國的湄公河流域了。
Ng, H.H. and M. Kottelat, 1998. The catfish genus Akysis Bleeker (Teleostei: Akysidae) in Indochina, with descriptions of six new species. J. Nat. Hist. 32:1057-1097. (Ref. 30226)
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Estimates based on models
Phylogenetic diversity index (Ref.
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).
營養階層 (Ref.
69278): 3.5 ±0.6 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
