Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Characiformes
(Characins) > Characidae
(Characins) > Incertae sedis
Etymology: eurystaenia: The specific name is derived from the Greek eurys, broad, and the Latin taenia, band, in reference to the broad dark stripe.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic. Tropical
South America: Rio Ronuro drainage, upper rio Xingu basin, Brazil.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 3.7 cm SL male/unsexed; (Ref. 85160)
Morphology | Morphometrics
Vertebrae: 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
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
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)
IUCN Red List Status (Ref. 119314)
CITES (Ref. 115941)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01445 (0.00650 - 0.03213), b=3.05 (2.86 - 3.24), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.2 ±0.5 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months ().
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .