分類 / 名前
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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.
環境:環境 / 気候帯 / 深さの範囲 / 分布範囲
生態学
; 新鮮な水 底生の. Subtropical
South America: Rio Ribeira do Iguape basin in southeastern Brazil.
サイズ / 重さ / 年齢
成熟: Lm ?  range ? - ? cm
Max length : 4.8 cm SL オス/雌雄の選別がない; (Ref. 53272)
簡単な記述
検索表 | 形態学 | 形態計測学
背鰭 (合計) : 9; 臀鰭: 8; 脊つい: 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.
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).
ライフサイクルと交尾行動
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
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のレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
人間の用途
水産業: 興味がない
用具
特記事項
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インターネットの情報源
モデルに基づく推定値
系統多様性指数 (参照 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). |
栄養段階 (参照 69278) |
3.1 ±0.4 se; based on size and trophs of closest relatives |
漁業の脆弱性 (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |