分類 / Names
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Gymnotiformes (Knifefishes) >
Sternopygidae (Glass knifefishes)
Etymology: Eigenmannia: From Eigenmann, 1910, researcher of faunistic studies (Ref. 45335); sayona: Named in reference to 'La Sayona', a spirit of philanderous veneance in Venezuelan lore (Ref. 128865).
Eponymy: Professor Dr Carl Henry Eigenmann (1863–1927) was a German-born American ichthyologist. [...] In Venezuelan folklore, La Sayona is a spirit of philanderous vengeance. Apparently, the name is a homage to the Venezuelan people with no meaning or significance to the fish itself. (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
生態学
; 新鮮な水 底生の漂泳性. Tropical
South America: Venezuela.
サイズ / 重さ / 年齢
Maturity: Lm ?  range ? - ? cm
Max length : 16.0 cm TL オス/雌雄の選別がない; (Ref. 128865)
簡単な記述
検索表 | 形態学 | 形態計測学
臀鰭: 198 - 217. This species is distinguished from its congeners by the following set of characters: presence of a superior midlateral stripe; an ossified first basibranchial; A 198-217 fin rays; suborbital depth, 21.3-26.1% HL; length of anterodorsal process of maxilla equal to the width of the posterior nostril; distinct dentition pattern of the premaxilla with 17 teeth distributed in three rows; hyaline pectoral and anal fins; and 9-10 scale series above lateral line (Ref. 128865).
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Peixoto, L.A.W. and B.T. Waltz, 2017. A new species of the Eigenmannia trilineata (Gymnotiformes: Sternopygidae) species group from the río Orinoco basin, Venezuela. neotrop. Ichthyol. 15(1):e150199. (Ref. 128865)
IUCNのレッドリストの状況は (Ref. 130435: Version 2024-1)
Human uses
用具
特記事項
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インターネットの情報源
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00372 (0.00175 - 0.00789), b=2.97 (2.78 - 3.16), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
栄養段階 (Ref.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).