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: Deuterodon: Greek, deuter = second + Greek, odous = teeth (Ref. 45335); aphos: Specific name from the Greek aphos, meaning dark, obscure, in allusion to the dark color of the water of rio Lençois, the type locality..
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 底中水层性. 热带
South America: Rio Lençois in Bahia, Brazil.
南美洲: 在 Bahia 巴西的 Rio Lencois。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 5.6 cm SL 雄鱼/尚未辨别雌雄; (Ref. 54751)
简单描述
检索表 | 型态特徵 | 形态测量图
脊椎骨: 36. Distinguished from all other characid fishes by the following combination of characters: infraorbitals fused uniquely, resulting in less than six autogenous bones; presence of a single tooth row in the premaxilla; presence of cheirodontin-like teeth, somewhat pedunculated, expanded and compressed distally, with cusps similar in shape and perfectly aligned along dorsal margin; ventral margin of toothed portion of maxillary curved towards the ventral margin of the premaxilla and maxillary teeth forming a continuous series with premaxillary teeth; margins of pre- and postzygapophyses with projections anteriorly and posteriorly directed; accumulation of epithelial cells forming globular structures distributed over head and scales; and base of anal-fin without scales covering basal portion of unbranched and anterior branched rays (Ref. 54751).
与所有的其他脂鲤科鱼类鱼区分了藉由跟随组合特征: 眶下骨独特地融合了,造成少于六个自生的硬骨; 在前颌骨有一个齿列; 有像 cheirodontin 一样的齿, 略微有梗的, 扩大与扁长形的末梢部地, 与尖头相似的在外形上而且完全地排列沿着上缘; 上颌骨的有齿部分的下缘向用上颌骨前的齿形成一个连续的系列的前颌骨的下缘与上颚齿弯曲; 边缘前与后关节突用突出前面地而且朝向后面; 形成球状的结构的上皮细胞的积聚布满了头部与鳞片; 而且臀鳍基底-鳍没有鳞片包含的不分枝而前面分支条的基部部分.(参考文献 54751)
描述: 背鰭鰭條 ii,8,i 或 ii,9. 臀鰭棘條 iv,14, iv,15, iv,16 或 iv,17. 胸鰭鰭條 i,10 或 i,11. 胸鰭鰭條 i,7.(參考文獻 54751)
Found in shallow, headwater stream with fast water current over a rocky bottom and margin, with a small amount of riparian or submerged vegetation (Ref. 54751). Feeds on filamentous algae, terrestrial vegetal fragments and insects (Ref. 54751).
发现于浅滩了, 河川源头水流用在一个岩石的底部与边缘上的快速水流, 具有一个小量的河岸土地所有人或水中植物.(参考文献 54751) 吃菌丝藻，陆栖的植物碎片与昆虫。 (参考文献 54751)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
南美洲: 在 Bahia 巴西的 Rio Lencois。
Terán, G.E., M.F. Benitez and J.M. Mirande, 2020. Opening the Trojan house: phylogeny of Astyanax, two genera and resurrection of Psalidodon (Teleostei: Characidae). Zool. J. Lin. Soc. 190(4):1217-1234. (Ref. 123753)
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
营养阶层 (Ref.
69278): 2.5 ±0.25 se; based on food items.
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).
