分类 / 名称
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Rivulidae (Rivulines) > Rivulinae
Etymology: Plesiolebias: Greek, plesios = near + Greek, lebias, ou = a kind of small fish (Ref. 45335).
Eponymy: The Xavante are an indigenous ethnic group who live in the region between Rio das Mortes and Rio Culuene, Mato Grosso, Brazil. They are the largest Amerindian tribe in the area where the rivuline species was discovered. (Ref. 128868), visit book page.
More on authors: Costa, Lacerda & Tanizaki.
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; 非迁移的. 熱帶
South America: Middle Tocantins River basin, Brazil.
南美洲: 中央 Tocantins 河流域。
大小 / 重量 / 年龄
成熟度: Lm ? range ? - ? cm
Max length : 5.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 36579)
Bottom spawner, 4 months incubation. Is difficult to maintain in aquarium (Ref. 27139).
底部产卵鱼， 4 个月孵育时间。 在水族馆是难以维持。 (参考文献 27139)
生命周期和交配行为
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
南美洲: 中央 Tocantins 河流域。
Costa, W.J.E.M., 2003. Rivulidae (South American Annual Fishes). p. 526-548. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 36579)
世界自然保护联盟红皮书 (Ref. 130435: Version 2025-2 (Global))
濒危 (EN) (B2ab(ii,iii,iv,v)); Date assessed: 07 November 2018
人类利用
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特别资料
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基于模型的估算
系统发育多样性指数 (参考文献
82804): PD
50 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00661 (0.00315 - 0.01385), b=3.10 (2.92 - 3.28), 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): 3.2 ±0.4 se; based on size and trophs of closest relatives
回复力 (参考文献
120179): 高度, 族群倍增时间少于 15个月 (Preliminary K or Fecundity.).
渔业脆弱性 (Ref.
59153): Low vulnerability (10 of 100).
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