分類 / 名稱
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Characiformes (Characins)
脂鯉目 (Characins) >
Lebiasinidae (Pencilfishes)
鮰脂鯉科 (Pencilfishes) > Pyrrhulininae
Etymology: Nannostomus: Latin, nannus = small + Greek, stoma = mouth (Ref. 45335).
More on author: Eigenmann.
Taxonomic Remarks
The most recent distributional records were published by Weitzman & Weitzman (1982: Fig. 229). The most recent systematic description is by Weitzman & Cobb (1975). Occasionally exported as an aquarium fish with various small tetragonopterines and Nannostomus espei from Guyana. This species is now the second smallest species of Nannostomus, the smallest being Nannostomus anduzei. See Weitzman et al. (2001) and Bork & Mayland (1998).
環境: 環境 / 氣候帶 / 深度上下限 / 配送範圍
生態學
; 淡水 底中水層性. 熱帶
South America: Potaro and Mazaruni River basins in Guyana.
南美洲: Potaro 與 Mazaruni 河流域。
大小 / 重量 / 年齡
成熟度: Lm ?  range ? - ? cm
Max length : 2.3 cm SL 雄魚/尚未辨別雌雄; (Ref. 37104)
生命週期和交配行為
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
南美洲: Potaro 與 Mazaruni 河流域。
Weitzman, M. and S.H. Weitzman, 2003. Lebiasinidae (Pencil fishes). p. 241-251. 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. 37104)
IUCN 瀕危狀態 (Ref. 130435: Version 2025-2 (Global))
無危 (LC) ; Date assessed: 31 December 2020
人類使用
漁業: 沒有興趣
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基於模型的估計
系統發育多樣性指數 (參考文獻 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=0.00661 (0.00287 - 0.01523), b=3.13 (2.93 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
營養階層 (參考文獻 69278) |
3.1 ±0.4 se; based on size and trophs of closest relatives |
釣魚的脆弱性 (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |