分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Gymnotiformes (Knifefishes) >
Hypopomidae (Bluntnose knifefishes)
Etymology: Steatogenys: Greek, steatos = hard fat + Greek, genys, yos = jaw (Ref. 45335); ocellatus: From the Latin ocellus, diminutive of oculus, eye, in reference to the diagnostic eyelike marking at the pectoral-fin base..
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 底中水层性. 热带
South America: Lago Amaña and Lago Tefe in the Upper Amazon basin of Brazil and also from a single specimen from Rio Itaya, a tributary of the Rio Amazonas near Iquitos, Peru.
南美洲: 在巴西的亚马孙河上游流域的 Lago Amana 与 Lago Tefe 以及从来自 Rio Itaya 的一件标本, 在伊奇多，秘鲁附近的 Rio Amazonas 的一个支流。
Length at first maturity / 大小 / 重量 / 年龄
Maturity: Lm ?, range 24 - ? cm
Max length : 40.5 cm TL 雄鱼/尚未辨别雌雄; (Ref. 51263)
简单描述
检索表 | 型态特徵 | 形态测量图
臀鳍软条: 167 - 195. Unique among species of Steatogenys in having very large maximum body size (length to end of anal fin 32 cm); distinct round or oval spot on pectoral-fin base, approximately 1.5 eye widths in diameter; irregular dark blotches on pectoral fin forming a distinct mottled pattern; 15 pectoral-fin rays; relatively many scales over lateral (8-10); relatively many pored lateral line scales to end of anal fin (97-103); relatively few bands on body (6-7) and relatively short caudal appendage in intact specimens (11.4-29.6% TL) (Ref. 51263).
独特的在 Steatogenys 的种之中在有非常大的最大身体大小方面;(长度臀鳍 32 公分结束) 在胸鳍基底上明显的圆或椭圆形斑点, 大约 1.5个眼宽度直径; 在形成一个的胸鳍上的不规则的黑色斑块明显的有斑点的图案; 15个胸鳍鳍条; 在侧部上的相当许多鳞片;(8-10) 相当许多有细孔的侧线鳞片臀鳍结束;(97-103) 在身体 (6-7) 上的相当少见的条纹与相当在完整无缺标本 (11.4-29.6% TL) 中的短尾部的附肢.(参考文献 51263)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
南美洲: 在巴西的亚马孙河上游流域的 Lago Amana 与 Lago Tefe 以及从来自 Rio Itaya 的一件标本, 在伊奇多，秘鲁附近的 Rio Amazonas 的一个支流。
Crampton, W.G.R., D.H. Thorsen and J.S. Albert, 2004. Steatogenys ocellatus: a new species of neotropical electric fish (Gymnotiformes: Hypopomidae) from the lowland Amazon basin. Copeia 2004(1):78-91. (Ref. 51263)
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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=0.00380 (0.00145 - 0.00994), b=3.06 (2.83 - 3.29), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (31 of 100).
