分类 / 名称
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Gymnotiformes (Knifefishes) >
Sternopygidae (Glass knifefishes) > Eigenmanninae
Etymology: Eigenmannia: From Eigenmann, 1910, researcher of faunistic studies (Ref. 45335); robsoni: Named for Robson Tamar da Costa Ramos, ichthyologist, for his contributions to studies of the Caatinga ecoregion, especially in the Parnaíba river basin; patronym.
Eponymy: Professor Dr Carl Henry Eigenmann (1863–1927) was a German-born American ichthyologist. [...] (Ref. 128868), visit book page.
环境:氛围 / 气候带 / 深度上下限 / 分布范围
生态学
; 淡水 底中水层性.
分布
领土 | FAO区域 | 生态系 | 标本纪录 | 分布图 | 简介 | Faunafri
South America: Northeastern Brazil.
大小 / 重量 / 年龄
成熟度: Lm ?  range ? - ? cm
Max length : 15.2 cm SL 雄鱼/尚未辨别雌雄; (Ref. 138579)
简单描述
检索表 | 型态特徵 | 形态测量图
臀鳍软条: 182 - 228. This species, a member of the E. trilineata species-group, is distinguished by the following characters: anal-fin hyaline; absence of enlarged eye 16.2-21.3%; caudal filament short, 19.9-36.4 % LEA; no lateral line stripe; no superior midlateral stripe; A 182-228; scales rows above lateral line 12-15; scales on lateral line 107-131; premaxillary teeth 32-34; dentary teeth 35-44; endopterygoid teeth 9-12; depth of posterodorsal expansion on infraorbitals 1+2 half as long as infraorbitals 1+2 length; basibranchial 1 unossified; precaudal vertebrae 13; coronomeckelian bone length corresponding to 20% of length of Meckel’s cartilage (Ref. 138579).
Body shape (shape guide): elongated; Cross section: compressed.
Recorded in perennial and intermittent rivers with clear and lentic waters, sandy substrate with lots of aquatic vegetation. In perennial rivers, the riparian vegetation is typical of the Cerrado, with palms of Mauritia flexuosa, while in intermittent rivers, the riparian vegetation is the
'fringe forests', dominated by palm trees such as Copernicia prunifera (Ref. 138579).
生命周期和交配行为
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Dutra, G.M., T.P.A. Ramos and N.A. Menezes, 2022. Description of three new species of Eigenmannia (Gymnotiformes: Sternopygidae) from the rio Mearim and rio Parnaíba basins, northeastern Brazil. Neotropical Ichthyol. 20(1):e210117: 1-23. (Ref. 138579)
世界自然保护联盟红皮书 (Ref. 130435: Version 2025-2 (Global))
人类利用
渔业: 没有兴趣
工具
特别资料
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网络资源
基于模型的估算
系统发育多样性指数 (参考文献 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00355 (0.00161 - 0.00782), b=2.97 (2.77 - 3.17), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
营养阶层 (参考文献 69278) |
3.1 ±0.3 se; based on size and trophs of closest relatives |
渔业脆弱性 (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |