分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Siluriformes (Catfishes)
鯰形目 (Catfishes) >
Trichomycteridae (Pencil or parasitic catfishes)
毛鼻鯰科 (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.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 居於水底的. 亞熱帶的
South America: Rio Ribeira do Iguape basin in southeastern Brazil.
南美洲: 在巴西東南方中的 Rio Ribeira do Iguape 流域。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 4.8 cm SL 雄魚/尚未辨別雌雄; (Ref. 53272)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背的軟條 (總數) : 9; 臀鰭軟條: 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).
有別於 M. barbata 有達到在後鼻孔正後方的短的鼻觸鬚; 眼放置在頭部的後半段上; 第一個胸鰭鰭條短於在後部的一些, 它的頂端不形成一個明顯的絲狀突起; 臀鰭起源後面垂直的經過最後背鰭鰭條的基底; 每個眶上管的最後面孔在中線中聯合了, 構成一個中央的孔; 額骨向前延長; 囟門不前面地延伸超過最後面的眶上孔; 蝶骨的前部具有一個突出的側面突起; 前面的上顎成骨不存在; 上顎延長的在後部突起, 沒有在後部的突起的大約 60% 的上顎多骨的部分; 而且上眼窩骨延長, 大約三倍於長達淚骨.(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).
出現於清澈的, 淺的溪流 (大約 60 公分深), 具有一個灰色的沙質底部, 一些標本完全地被發現的埋藏了, 除了吻與觸鬚.(參考文獻 53272)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
南美洲: 在巴西東南方中的 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)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-2)
無危 (LC) ; Date assessed: 18 May 2022
人類使用
漁業: 沒有興趣
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: 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).
營養階層 (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
