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); cacuria: Name 'cacuriá' refers to a typical dance in the state of Maranhão, where the holotype was collected; noun in apposition.
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: Brazil.
大小 / 重量 / 年龄
成熟度: Lm ?  range ? - ? cm
Max length : 15.2 cm TL 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: 180 - 196. This species, a member of the E. trilineata species-group, is distinguished by the following characters: anal-fin hyaline; absence of enlarged eye, 17.5-21.1% HL; caudal filament short, 26.4-41.3% LEA; terminal mouth; lateral line stripe restricted to last two thirds of body; pectoral-fin rays ii,11-13; A 180-196; scales rows above lateral line 12-15; premaxillary teeth 10-14; dentary teeth 15-21; endopterygoid teeth 8-10; dentary teeth increasing in size along dentigerous surface; basibranchial 1 unossified; precaudal vertebrae 14 (Ref. 138579).
Body shape (shape guide): elongated; Cross section: compressed.
This species is apparently restricted to perennial rivers: specimens collected in a lentic environment, with clear water, sandy substrate, and varying amounts of remnants of riparian vegetation typical of the Cerrado biome, and with palms of Mauritia flexuosa (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). 🛈 |