Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
Characiformes (Characins) >
Acestrorhamphidae (American tetras) > Stichonodontinae
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. [...] Dr Ricardo C Benine is an evolutionary taxonomist, particularly of fish fauna, who is an assistant professor in the Department of Zoology at São Paulo State University, Brazil. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic. Tropical
South America: Brazil.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Short description
Identification keys | Morphology | Morphometrics
This species is distinguished from all its congeners, except M. agnesae, by the presence of two irregularly-shaped humeral blotches, with dark longitudinal stripes on the dorsal portion of the body; differs from M. agnesae by the straight longitudinal stripes, conspicuous dorsally, the humeral blotches contacting each other, its 2-3 tricuspid maxillary teeth, the 32-35 lateral-line scales, and the length of maxilla 45.3–51.0% in head length (Ref. 138309).
Body shape (shape guide): elongated; Cross section: oval.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Lima, F.C.T. and I.M. Soares, 2018. A new Moenkhausia (Actinopterygii: Characiformes: Characidae) from the upper rio Negro basin, Brazil. Zootaxa 4461(1):69-76. (Ref. 138309)
IUCN Red List Status (Ref. 130435: Version 2025-2 (Global))
Threat to humans
Harmless
Human uses
Fisheries: of potential interest
Tools
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Internet sources
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=0.00955 (0.00391 - 0.02334), b=3.17 (2.98 - 3.36), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.3 ±0.5 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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