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Teleostei >
Siluriformes (Catfishes) >
Bagridae (Bagrid catfishes)
Etymology: Olyra: Greek, olyra = a kind of grain (Ref. 45335).
Eponymy: Dr Robert Collett (1842–1913) was a Norwegian zoologist and ichthyologist. [...] (Ref. 128868), visit book page.
More on author: Steindachner.
Taxonomic Remarks
After Bockmann & de Pinna (2004: Ref. 55745), possibly a synonym of Olyra longicaudata McClelland, 1842. The validity of species remains to be demonstrated.
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. 热带
分布
领土 | FAO区域 | 生态系 | 标本纪录 | 分布图 | 简介 | Faunafri
Asia.
亚洲。
大小 / 重量 / 年龄
成熟度: Lm ?  range ? - ? cm
Max length : 5.8 cm SL 雄鱼/尚未辨别雌雄; (Ref. 55745)
简单描述
检索表 | 型态特徵 | 形态测量图
Distinguished by having the following characters: posterior nares with nasal barbels (shared with various Old-World catfish taxa); anus and urogenital openings widely separated (shared with a large subgroup of Bagridae); first lateral line ossicle with well-defined processes articulating with supracleithrum (shared with species of Olyra) (Ref. 55745).
区别的特征为有下列的特征: 具有鼻的触须在后部的鼻孔;(以各种不同的从前鲶鱼分类单元分享) 肛门与泌尿生殖孔分得很开;(分享具有一个鲿科的大小群) 第一个侧线小骨具有很清晰连接 supracleithrum(以 Olyra 的种分享) 的突起.(参考文献 55745)
Formerly wrongly attributed to the South-American fauna. This species clearly belongs to South Asia. It is possible that accidental mixing of specimens and or labels resulted in the assignment of this species to a Neotropical location (Ref. 55745).
生命周期和交配行为
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
亚洲。
Bockmann, F.A. and M.C.C. de Pinna, 2004. Heptapterus collettii Steindachner, 1881: a member of the Asian bagrid genus Olyra erroneously assigned to the Neotropical fauna (Siluriformes: Ostariophysi). Copeia 2004(3):665-675. (Ref. 55745)
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) |
PD50 = 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00871 (0.00415 - 0.01826), b=2.93 (2.76 - 3.10), 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 ±0.1 se; based on size and trophs of closest relatives |
渔业脆弱性 (Ref. 59153) |
Low vulnerability (12 of 100). 🛈 |