分类 / 名称
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Siluriformes (Catfishes) >
Trichomycteridae (Pencil or parasitic catfishes) > Microcambevinae
Etymology: Microcambeva: Greek, mikros = small + cambeva, a Tupí-Guaraní word = flattened head; ribeirae: Named for its type locality, Ribeira do Iguape.
Eponymy: In the case of the catfish and cichlid, this is a toponym referring to the Rio Ribeira de Iguape, a river basin in Brazil, which is the type locality. [...] (Ref. 128868), visit book page.
More on authors: Costa, Lima & Bizerril.
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. 亚热带的
分布
领土 | FAO区域 | 生态系 | 标本纪录 | 分布图 | 简介 | Faunafri
South America: Rio Ribeira do Iguape basin in southeastern Brazil.
南美洲: 在巴西东南方中的 Rio Ribeira do Iguape 流域。
大小 / 重量 / 年龄
成熟度: Lm ?  range ? - ? cm
Max length : 4.8 cm SL 雄鱼/尚未辨别雌雄; (Ref. 53272)
简单描述
检索表 | 型态特徵 | 形态测量图
背的软条 (总数) : 9; 臀鳍软条: 8; 脊椎骨: 34. Differs from M. barbata in having short nasal barbels reaching just behind posterior nostril; eye positioned on posterior half of head; first pectoral-fin ray shorter than posterior ones, its tip not forming a distinct filament; anal fin origin posterior of vertical through base of last dorsal-fin ray; posteriormost pore of each supraorbital canal united in the midline, composing a single median pore; frontal elongated anteriorly; fontanel not extending anteriorly beyond posteriormost supraorbital pore; anterior portion of sphenotic with a prominent lateral process; anterior palatine ossification absent; posterior process of palatine elongate, about 60% of palatine bony portion without posterior process; and supraorbital bone elongate, about three times as long as lacrimal (Ref. 53272).
Body shape (shape guide): elongated.
有别于 M. barbata 有达到在后鼻孔正后方的短的鼻触须; 眼放置在头部的后半段上; 第一个胸鳍鳍条短于在后部的一些, 它的顶端不形成一个明显的丝状突起; 臀鳍起源后面垂直的经过最后背鳍鳍条的基底; 每个眶上管的最后面孔在中线中联合了, 构成一个中央的孔; 额骨向前延长; 囟门不前面地延伸超过最后面的眶上孔; 蝶骨的前部具有一个突出的侧面突起; 前面的上颚成骨不存在; 上颚延长的在后部突起, 没有在后部的突起的大约 60% 的上颚多骨的部分; 而且上眼窝骨延长, 大约三倍于长达泪骨.(參考文獻 53272)
描述: 背鰭鰭條 9;(ii, 6, i) 臀鰭棘條 8;(iii, 4, i) 胸鰭鰭條 7;(i, 6) 腹鰭鰭條 5(i, 4).(參考文獻 53272)
Occurs in clear, shallow streams (about 60 cm deep), with a gray sandy bottom, where some specimens were found entirely buried, except for snout and barbels (Ref. 53272).
出现于清澈的, 浅的溪流 (大约 60 公分深), 具有一个灰色的沙质底部, 一些标本完全地被发现的埋藏了, 除了吻与触须.(参考文献 53272)
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: 在巴西东南方中的 Rio Ribeira do Iguape 流域。
Costa, W.J.E.M., S.M.Q. Lima and C.R.S.F. Bizerril, 2004. Microcambeva ribeirae sp. n. (Teleostei: Siluriformes: Trichomycteridae): a new sarcoglanidine catfish from the Rio Ribeira do Iguape basin, southeastern Brazil. Zootaxa 563:1-10. (Ref. 53272)
世界自然保护联盟红皮书 (Ref. 130435: Version 2025-2 (Global))
人类利用
渔业: 没有兴趣
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 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref. 93245). |
营养阶层 (参考文献 69278) |
3.1 ±0.4 se; based on size and trophs of closest relatives |
渔业脆弱性 (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |