分類 / 名稱
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Siluriformes (Catfishes)
鯰形目 (Catfishes) >
Sisoridae (Sisorid catfishes)
吸口鯰科 (Sisorid catfishes) > Glyptosterninae
Etymology: Pseudexostoma: Greek, pseudes = false + Greek, exo = outside + Greek, stoma = mouth (Ref. 45335); longipterus: Name from latin 'longi' meaning longer and 'pterus' for fin, referring to the longer pectoral, pelvic, and caudal fins as compared to P. brachysoma and P. yunnanensis; noun in apposition.
環境： 環境 / 氣候帶 / 深度上下限 / 配送範圍
生態學
; 淡水 居於水底的. 溫帶
Asia: known only from the middle Nujiang (= Salween) basin.
亞洲: 已知只來自中央的怒江 (= 薩爾溫江) 流域了。
大小 / 重量 / 年齡
成熟度: Lm ? range ? - ? cm
Max length : 9.9 cm SL 雄魚/尚未辨別雌雄; (Ref. 57980)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背的軟條 (總數) : 5; 臀鰭軟條: 3 - 4. This species is distinguished from Pseudexostoma yunnanensis by the following characters: posterior margin of lower lip with 3 notches, depth of middle one shallower than lateral ones (vs. same depth), length of 2 smaller median lobes of lower lip longer than lateral lobes (vs. the same length); pelvic fin I, 3-4 (vs. I, 5); base of adipose fin longer, 37.8-45.1% SL (vs. 28.8-39.8); caudal peduncle more slender, depth 4.6-6.1% SL and 19.6-30.8% in length of caudal peduncle (vs. 6.4-8.3 and 32.6-42.7); premaxillary tooth band with 16-18 teeth (vs. 18-22), it is divided into 2 and are isolated (vs. connected partially). The species differs from P. brachysoma in having a longer pectoral fin 30.1-31.3% SL (vs. 24.9-29.8), pelvic 23.1-24.3% SL (16.1-22.9), and caudal 18-19.6% SL (vs. 13.6-17.9) fins; bigger eyes, diameter 8.2-10% HL (vs. 5.8-7.8) and wider interorbital width 25.5-30.8% HL (vs. 19.7-24.7) (Ref. 57980).
Body shape (shape guide): elongated.
這種在特徵之後被與 Pseudexostoma yunnanensis 區分藉由: 下唇的後緣有三個凹槽，中央的深度一個淺於側面的一些 (vs. 相同的深度), 下唇長度超過側葉的 2個比較小的中央葉的長度;(vs. 相同的長度) 腹鰭 I, 3-4;(vs. I, 5) 脂鰭的基底更長的, 37.8-45.1% SL;(vs.28.8-39.8) 尾柄更細長的, 深度 4.6-6.1% SL 與尾柄的 19.6-30.8% 長;(vs.6.4-8.3 與 32.6-42.7) 具有 16-18個齒 (vs.18-22) 的上頜骨前的齒箍, 它被分開成 2 而且被隔離.(vs. 連接部份地) 此魚種在有一個方面有別於 P. brachysoma 較長的胸鰭 30.1-31.3% SL(vs.24.9-29.8) ，腹鰭 23.1-24.3% SL(16.1-22.9) 與尾部的 18-19.6% SL(vs.13.6-17.9) 鰭; 較大的眼，直徑 8.2-10% HL(vs.5.8-7.8) 與較寬的眼間骨寬度 25.5-30.8% HL(vs.19.7-24.7).(參考文獻 57980)
生命週期和交配行為
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
亞洲: 已知只來自中央的怒江 (= 薩爾溫江) 流域了。
Zhou, W., Y. Yang, X. Li and M.-H. Li, 2007. Review of the catfish genus Pseudexostoma (Siluriformes: Sisoridae) with description of a new species from the Upper Salween (Nujiang) Basin of China. Raffles Bull. Zool. 55 (1):147-155. (Ref. 57980)
IUCN 瀕危狀態 (Ref. 130435: Version 2025-2 (Global))
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基於模型的估計
系統發育多樣性指數 (參考文獻
82804): PD
50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00603 (0.00269 - 0.01352), b=3.08 (2.88 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (參考文獻
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
回復力 (參考文獻
120179): 中等的, 族群倍增時間最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
釣魚的脆弱性 (Ref.
59153): Low vulnerability (10 of 100).
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