Overview

Distribution

Araguaia-Tocantins River and upper Tapajós River basins, Brazil.
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South America: Araguaia-Tocantins River and upper Tapajós River basin, Brazil.
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Physical Description

Morphology

Dorsal spines (total): 0; Dorsal soft rays (total): 11; Analsoft rays: 26 - 30; Vertebrae: 31 - 33
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Size

Max. size

2.9 cm SL (male/unsexed; (Ref. 38376))
  • Lima, F.C.T., L.R. Malabarba, P.A. Buckup, J.F. Pezzi da Silva, R.P. Vari, A. Harold, R. Benine, O.T. Oyakawa, C.S. Pavanelli, N.A. Menezes, C.A.S. Lucena, M.C.S.L. Malabarba, Z.M.S. Lucena, R.E. Reis, F. Langeani, C. Moreira et al. … 2003 Genera Incertae Sedis in Characidae. p. 106-168. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 38376)   http://www.fishbase.org/references/FBRefSummary.php?id=38376&speccode=10622 External link.
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Diagnostic Description

Males with a broad, convex anal-fin lobe formed by the 12-14 anteriormost rays, which are more elongated and thickened than the remaining rays; pelvic bones elongated, protruding through the body wall in some of the largest specimens; dorsal and pelvic fins not elongated in mature males; caudal peduncle blotch asymmetric and not as dark in males; all dentary teeth cusps in a straight line and 3 teeth in the maxilla (Ref. 42938).
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Type Information

Paratype for Hyphessobrycon moniliger Moreira et al.
Catalog Number: USNM 365042
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Collector(s): W. Costa & et al.
Year Collected: 1993
Locality: Brazil, Goias, River 98 km West From Jussara., Brazil, South America
  • Paratype: Moreira, C. R., et al. 2002. Ichthyological Exploration of Freshwaters. 13 (1): 74, figs 1-2.
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Ecology

Habitat

Environment

pelagic; freshwater
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Conservation

Threats

Not Evaluated
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