分类 / 名称
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Gymnotiformes (Knifefishes) >
Apteronotidae (Ghost knifefishes) > Apteronotinae
Etymology: Sternarchella: Greek, sternon = sternon, + Greek, diminutive, archos = anus (Ref. 45335); patriciae: Named for Patricia Evans, a prominent civil-rights activist and community leader in Philadelphia, Pennsylvania.
Eponymy: Patricia Evans is a civil-rights activist and community leader in Philadelphia, Pennsylvania, USA. She is also the senior author’s mother. (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: Peru.
大小 / 重量 / 年龄
成熟度: Lm ? range ? - ? cm
Max length : 20.8 cm TL 雄鱼/尚未辨别雌雄; (Ref. 126780)
简单描述
检索表 | 型态特徵 | 形态测量图
This species is distinguished from all its congeners by the following characters: with two rows of bones visible externally in caudal peduncle (vs. one row in duccis, orinoco, orthos, raptor, sima, schotti) (shared with calhamazon, rex); continuous membrane of tissue connecting the anal-fin base and caudal peduncle (vs. no membrane in duccis, orinoco, orthos, raptor, sima, schotti) (shared with calhamazon, rex); presence of a long body-cavity, 14-15 pre-caudal vertebrae (vs. 12-14 in calhamazon and 16 duccis, orinoco, rex, sima, schotti) (shared with orthos, raptor); possess a ridge or crown of thorny projections at border of parietal and supraoccipital and epioccipital ridges (vs. absent in calhamazon, duccis, orinoco, raptor, rex, schotti, sima); with a ridge on the posterior dorsal surface of the basihyal (vs. ridge absent in calhamazon) (shared with
duccis, orinoco, orthos, sima, schotti, rex, raptor) (Ref. 126780).
Cross section: compressed.
Collected by trawling the river bottom where individuals inhabit deep river channels (10-20 m) during the day and move to shallower water at night to feed near the river margin and over flooded beaches. Stomach content indicates that these fishes feed primarily on larger-bodied (non-planktonic) aquatic insect larvae (e.g. Odonata and Ephemeroptera) and some juvenile fishes (Ref. 126780).
生命周期和交配行为
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Evans, K.M., W.G.R. Crampton and J.S. Albert, 2017. Taxonomic revision of the deep channel electric fish genus Sternarchella (Teleostei: Gymnotiformes: Apteronotidae), with descriptions of two new species. Neotrop. Ichthyol. 15(2):1-30. (Ref. 126780)
世界自然保护联盟红皮书 (Ref. 130435: Version 2025-2 (Global))
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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 = 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00355 (0.00146 - 0.00863), b=3.06 (2.85 - 3.27), 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): 3.3 ±0.3 se; based on size and trophs of closest relatives
渔业脆弱性 (Ref.
59153): Low vulnerability (11 of 100).
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