分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Cypriniformes (Carps) >
Nemacheilidae (Brook loaches)
Etymology: Schistura: Greek, schizein = to divide + Greek, oura = tail; an allusion to forked caudal fins (Ref. 45335); macrocephalus: From the Greek makros (large) and kephale (head).
More on author: Kottelat.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性. 熱帶
Asia: Nam Youan basin in Laos and Mengla River in China.
亞洲: 寮國的 Nam Youan 流域與中國的孟腊河。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 8.4 cm SL 雄魚/尚未辨別雌雄; (Ref. 36949)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
Head with massive appearance, lateral length 3.4-3.8 times in SL; anterior nostril pierced on front side of a flap; processus dentiformis present; no median notch in upper lip, lower lip interrupted medially; dorsal keel on caudal peduncle; lateral line complete; anus about 1-2 eye diameters in front of anal-fin origin; 8.5 branched dorsal-fin rays; 5.5 branched anal-fin rays; caudal fin emarginate, with 9+8 branched rays; axillary pelvic lobe reduced or missing; top of head with a few large spots; body with 6-9 brown bars, wider than or as wide as interspaces, wider anteriorly than posteriorly; along lateral line, a series of faint blackish blotches more or less corresponding and superimposed to bars; black bar of caudal-fin base either almost complete or, often, dissociated into two blotches, a slightly oblique one along base of upper rays and a vertical and somewhat longer one on lower two-thirds of fin base (Ref. 36949).
頭部有大的外表, 側面的長度 3.4-3.8 標準體長比率; 前鼻孔在鰓蓋的在前面側邊上刺穿了; 活動 dentiformis 呈現; 在上嘴唇中的沒有中央的凹槽, 下唇中間地中斷; 背部的尾柄龍骨脊; 側線完整; 關於臀鰭前面起源的 1-2 眼直徑的肛門; 8.5 分枝的背鰭鰭條; 5.5 分枝的臀鰭棘條; 尾鰭邊緣微凹的, 藉由 9+8個分支條; 縮小的或失去的腋窩的腹鰭葉; 頂尖的頭部有一些大的斑點; 身體有 6-9條褐色橫帶, 寬或與間隙一樣寬, 寬的前面地超過在後部地; 沿著側線，一系列的模糊黑色的斑塊約略符合而且重疊到橫帶; 尾鰭基底的黑色橫帶或幾乎完成或者，時常，進入二個斑塊之內分離, 些微斜沿著上面鰭條的基底與一垂直的與略微更長的一在鰭的基底的下面三分之二上.(參考文獻 36949)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
亞洲: 寮國的 Nam Youan 流域與中國的孟腊河。
Kottelat, M., 2000. Diagnosis of a new genus and 64 new species of fishes from Laos (Teleostei: Cyprinidae, Balitoridae, Bagridae, Syngnathidae, Chaudhuriidae and Tetraodontidae). J. South Asian Nat. Hist. 5(1):37-82. (Ref. 36949)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-2)
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00692 (0.00310 - 0.01545), b=3.02 (2.85 - 3.19), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.0 ±0.3 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 中等的, 族群倍增時間最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
