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Characiformes (Characins) >
Acestrorhamphidae (American tetras) > Stichonodontinae
Etymology: eurystaenia: The specific name is derived from the Greek eurys, broad, and the Latin taenia, band, in reference to the broad dark stripe.
Eponymy: Dr William J Moenkhaus (1871–1947) was an American geneticist and ichthyologist who became Professor of Physiology at Indiana University Medical School (1904–1941), where he was Eigenmann’s colleague. [...] (Ref. 128868), visit book page.
Entorno: milieu / zona climática / rango de profundidad / gama de distribución
Ecología
; agua dulce bentopelágico. Tropical
South America: Rio Ronuro drainage, upper rio Xingu basin, Brazil.
Tamaño / Peso / Edad
Madurez: Lm ?  range ? - ? cm
Max length : 3.7 cm SL macho / no sexado; (Ref. 85160)
Descripción breve
Claves de identificación | Morfología | Morfometría
Radios blandos dorsales (total) : 11; Vértebra: 34. Can be diagnosed from all its congeners, except Moenkhausia heikoi and Moenkhausia phaeonota, by having a dark, broad longitudinal stripe from the opercle to the end of caudal peduncle. Differs from Moenkhausia heikoi mainly by possessing 18-21 branched rays on anal fin (vs. 24-26), by the absence of a round blotch at the end of the caudal peduncle (vs. present) and by the dark stripe formed by relatively small chromatophores (vs. large chromatophores). Can be separated from Moenkhausia phaeonota by the anterior portion of longitudinal band darker at horizontal septum (vs. darker below horizontal septum), the deep dark pigmentation along horizontal septum extending anteriorly up to humeral region (vs. extending up to vertical through pelvic-fin origin), number of vertebrae 34 (vs. 36-37), more dispersed dark stripe, not well delimited (vs. less disperse, relatively well delimited), the melanophores of interradial membrane between first and fifth branched dorsal-fin rays restricted to the edge of lepidotrichia (vs. spread over interradial membrane), the distance between snout to pelvic-fin origin 46.9-50% SL (vs. 43.2-46.6), the distance from snout to anal-fin origin 62.1-65.4% SL (vs. 55.9-61.2), the anal-fin base length 25.1-28.4% SL (vs. 28.5-33.8) (Ref. 85160).
Body shape (shape guide): short and / or deep.
Ciclo vital y comportamiento de apareamiento
Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva
Marinho, M.M.F., 2010. A new species of Moenkhausia Eigenmann (Characiformes: Characidae) from the rio Xingu basin, Brazil. Neotrop. Ichthyol. 8(3):655-659. (Ref. 85160)
Situación en la Lista Roja de la UICN (Ref. 130435: Version 2025-2 (Global))
Amenaza para el ser humano
Harmless
Usos humanos
Pesquerías: de interés potencial
Herramientas
Informes especiales
Descargar XML
Fuentes de Internet
Estimaciones basadas en modelos
Índice de diversidad filogenética (Referencia 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=0.01479 (0.00594 - 0.03681), b=3.00 (2.78 - 3.22), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Nivel trófico (Referencia 69278) |
3.2 ±0.5 se; based on size and trophs of closest relatives |
Vulnerabilidad pesquera (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |