分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Characiformes (Characins) >
Acestrorhynchidae (Smallscale pike characins) > Heterocharacinae
Etymology: Heterocharax: Greek, heteros = other + Greek, charax = a marine fish without identification (Ref. 45335); leptogrammus: From the thin stripe above the anal-fin base; noun in apposition.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 底中水层性. 熱帶
South America: Negro River and upper portion of Orinoco River basin.
南美洲: 尼格羅河與奧里諾科河河流域的部分上游。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 3.4 cm SL 雄鱼/尚未辨别雌雄; (Ref. 36811)
简单描述
检索表 | 型态特徵 | 形态测量图
背的软条 (总数) : 9; 臀鳍软条: 28 - 34; 脊椎骨: 34. A thin band of dark pigmentation present from dorsal to the anal fin base (lacking in H. macrolepis). Differs from H. virgulatus where this band and the longitudinal band extending from the posterior portion of the head to the caudal fin base is thicker and more heavily pigmented. Further, this species differs from H. virgulatus with its relatively smaller orbital diameter; more pointed posteroventral corner of preopercle; relatively elongate gill rakers along the epibranchial and hypobranchial portion of the first branchial arch; single ossification in the position primitively occupied by infraorbitals 4 and 5; small posterior dentary teeth beginning behind lateralmost tooth of the anterior row thus not forming a second internal teeth series (Ref. 38319).
一条深色颜色的细纹从背鳍到臀鳍基底呈现。 (没有 H. macrolepis) 有别于这一条条纹与从头部到尾鳍基底的后面的部分延伸的纵向条纹比较厚的 H. virgulatus 与颜色更深的。 进一步，这种有别于 H. virgulatus 用它的相当小的眼窝直径; 前鳃盖骨的更尖腹面后方角落; 相当细长的鳃耙沿着上鳃骨与第一个鳃弓的鳃盖上方部分; 在位置的单一成骨原始地被眶下骨 4 与 5 占领了; 如此开始前面列的后面最后面牙齿的小在后部的齿骨齿不形成第二个内在的齿系列。 (参考文献 38319)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
南美洲: 尼格羅河與奧里諾科河河流域的部分上游。
Toledo-Piza, M., 2000. Two new Heterocharax species (Teleostei: Ostariophysi: Characidae), with a redescription of H. macrolepis. Ichthyol. Explor. Freshwat. 11(4):289-304. (Ref. 38319)
世界自然保护联盟红皮书 (Ref. 130435: Version 2024-2)
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00372 - 0.02687), b=2.97 (2.74 - 3.20), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.3 ±0.6 se; based on size and trophs of closest relatives
回复力 (Ref.
120179): 高度, 族群倍增时间少于 15个月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
