分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Gymnotiformes (Knifefishes)
電鰻目 (Knifefishes) >
Hypopomidae (Bluntnose knifefishes)
無齒刀魚科 (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
生態學
; 淡水 底中水層性. 熱帶
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: 在巴西的亞馬遜河上游流域的 Lago Amana 與 Lago Tefe 以及從來自 Rio Itaya 的一件標本, 在伊奇多，祕魯附近的 Rio Amazonas 的一個支流。
Length at first maturity / 大小 / 重量 / 年齡
Maturity: Lm ?, range 24 - ? cm
Max length : 40.5 cm TL 雄魚/尚未辨別雌雄; (Ref. 51263)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
臀鰭軟條: 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).
獨特的在 Steatogenys 的種之中在有非常大的最大身體大小方面;(長度臀鰭 32 公分結束) 在胸鰭基底上明顯的圓或橢圓形斑點, 大約 1.5個眼寬度直徑; 在形成一個的胸鰭上的不規則的黑色斑塊明顯的有斑點的圖案; 15個胸鰭鰭條; 在側部上的相當許多鱗片;(8-10) 相當許多有細孔的側線鱗片臀鰭結束;(97-103) 在身體 (6-7) 上的相當少見的條紋與相當在完整無缺標本 (11.4-29.6% TL) 中的短尾部的附肢.(參考文獻 51263)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
南美洲: 在巴西的亞馬遜河上游流域的 Lago Amana 與 Lago Tefe 以及從來自 Rio Itaya 的一件標本, 在伊奇多，祕魯附近的 Rio Amazonas 的一個支流。
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)
IUCN 瀕危狀態 (Ref. 130435)
無危 (LC) ; Date assessed: 10 September 2020
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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).
營養階層 (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).
