分类 / 名称
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
环境:氛围 / 气候带 / 深度上下限 / 分布范围
生态学
; 淡水 居于水底的; 深度上下限 0 - 1 m (Ref. 138443).
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 : 3.0 cm SL 雄鱼/尚未辨别雌雄; (Ref. 138443)
简单描述
检索表 | 型态特徵 | 形态测量图
This species is distinguished by the following characters: with posterior margin of pectoral-fin spine with most serrations directed towards the tip of the spine; presence of contact between nuchal plate and posterior process of the parieto-supraoccipital; absence of a large-sized dark blotch on caudal-fin base; posterodorsal edge of infraorbital 2 only in contact with sphenotic; absence of conspicuous dark brown or black markings on body; dark markings, when present, diffuse; posterior laminar expansion of infraorbital 2 strongly reduced, nearly imperceptible in some specimens, slender body, and narrow frontal bone; presence of ventral surface of trunk only with small-sized, irregular platelets; anterior portion of dorsal fin with scattered dark brown or black chromatophores, not forming any conspicuous pattern; dorsal surface of snout with numerous platelets bearing odontodes (Ref. 138443).
Body shape (shape guide): fusiform / normal; Cross section: oval.
Inhabits the rio Jamanxim and at least one of its tributaries, the igarapé Santa Júlia. In the rio Jamanxim, it was mostly associated along the margins of the river, where juvenile and adult specimens were observed in the shallow (up to about 20 cm deep) sandy shores with slow water flow. In the igarapé Santa Júlia, both juvenile and adult specimens were also observed in marginal shallow (up to about 20 cm deep) portions, with more complex substrate, mainly composed by sand, fine gravel and larger rocks. In both sampled sites, the new species was mostly captured at night (Ref. 138443).
生命周期和交配行为
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Tencatt, L.F.C., W.M. Ohara, L.M. de Sousa and M.R. Britto, 2022. Science and hobby joining forces for the discovery of three new Corydoras (Siluriformes: Callichthyidae) from the rio Tapajós basin, Brazil, with comments on Corydoras sp. CW111. Neotropical Ichthyology v. 20 (no. 3): e220070: 1-40. (Ref. 138443)
世界自然保护联盟红皮书 (Ref. 130435: Version 2025-2 (Global))
人类利用
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=0.01820 (0.00782 - 0.04232), b=3.02 (2.82 - 3.22), 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) |
3.0 ±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). 🛈 |