Classification / Names
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Characiformes (Characins) >
Characidae (Characins; tetras) > Stethaprioninae
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.
Environment: milieu / climate zone / depth range / distribution range
Écologie
; eau douce benthopélagique. Tropical
South America: Rio Ronuro drainage, upper rio Xingu basin, Brazil.
Taille / Poids / Âge
Maturity: Lm ? range ? - ? cm
Max length : 3.7 cm SL mâle / non sexé; (Ref. 85160)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Rayons mous dorsaux (Total) : 11; Vertèbres: 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).
Life cycle and mating behavior
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
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)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2024-2)
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
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Sources Internet
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01230 (0.00522 - 0.02900), b=3.08 (2.91 - 3.25), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Niveau trophique (Ref.
69278): 3.2 ±0.5 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
