分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Characiformes (Characins) >
Characidae (Characins; tetras) > Stethaprioninae
Etymology: Astyanax: The name of Astyanax, Hector´s son in the Greek mythology (Ref. 45335); turmalinensis: The new species is named for Turmalina, the country in which the specimens were first collected..
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 大洋性; 深度上下限 0 - 1 m (Ref. 52302). 热带
South America: Rio Jequitinhonha basin, Minas Gerais, Brazil.
南美洲: Rio Jequitinhonha 流域，古代希腊的金额单位 Gerais 巴西。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 6.5 cm SL 雄鱼/尚未辨别雌雄; (Ref. 81203)
简单描述
检索表 | 型态特徵 | 形态测量图
背棘 (总数) : 2; 背的软条 (总数) : 9; 臀棘: 2 - 3; 臀鳍软条: 18 - 21. Astyanax turmalinensis differs from the other species of the genus by the following combination of characters: presence of 20 to 24 anal fin rays; 34 to 36 scales in lateral lines; 1 or 2 teeth in the maxillary bone; greatest body depth at pelvic fin origin; caudal peduncle oval spot horizontally elongated, prolonging into median caudal fin rays, onward becoming a dark band laterally on the body, tapering anteriorly, to a point slightly anterior to middle of standard length; humeral black spot present, truncate anteriorly, usually circular posteriorly, extending anteroventrally, followed by a clear area and then subsequentely a vertically elongated dark area of loosely-assembled chromatophores. Snout slender, about the same mength as eye diameter; four teeth in the outer row of the premaxillary bone; posterior border of anal fin concave anteriorly.
Astyanax turmalinensis 在组合特征之后有别于本属的另一个种藉由: 有 20 到 24个臀鳍棘条; 在侧线中的 34 到 36个鳞片; 在颚的硬骨 1 或 2 齿; 在腹鳍起点的最大体高; 尾柄椭圆形斑点水平地瘦长的, 进入中央的尾鳍鳍条，向前的在身体上侧面地变成一个深色条纹之内延长, 尖端细的前面地, 对点些微地位于标准长度的中央前; 肱骨的黑色斑点存在的, 截形前面地, 通常圆形的在后部地, 延伸前腹部地, 然后 subsequentely 一个垂直地延长的松弛装配色素胞的深色區域跟隨著一個清澈的區域。 吻細長的, 大約如同眼直徑一般的 mength; 在上頜骨前硬骨的外部列中的四個齒; 臀鰭的後緣前面地凹曲。
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
南美洲: Rio Jequitinhonha 流域，古代希腊的金额单位 Gerais 巴西。
Triques, M.L., V. Vono and E.V. Caiafa, 2003. Astyanax turmalinensis, a new species from the Rio Jequitinhonha basin, Minas Gerais, Brazil (Characiformes: Characidae: Tetragonopterinae). aqua, J. Ichthyol. Aquat. Biol. 7(4):145-150. (Ref. 52302)
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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=0.01148 (0.00526 - 0.02507), b=3.08 (2.91 - 3.25), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 2.9 ±0.4 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).
