Overview

Comprehensive Description

Biology

Collected only in lentic marginal portions of the stream, on muddy bottom with plenty of submersed vegetation (Ref. 42626).
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Distribution

Teles Pires River in upper Tapajós basin, Brazil.
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South America: Teles Pires River in the upper Tapajós basin, Brazil.
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Physical Description

Size

Max. size

2.8 cm SL (male/unsexed; (Ref. 42626))
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Diagnostic Description

Body golden in life; transverse chevron-shaped bars along the horizontal midline of the body. Dorsal and pelvic fins elongated and filamentous in mature males. Thick anal fin rays and absence of anal fin lobe in mature males. A large caudal spot, covering at least half of the caudal peduncle and its base (Ref. 42626).
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Type Information

Paratype for Hyphessobrycon heliacus Moreira et al.
Catalog Number: USNM 348911
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Collector(s): C. Moreira & M. Landim
Year Collected: 1998
Locality: Brazil: State of Mato Grosso, Creek Duas-Bocas. 71.9 km From Sinop, In the Br-163 (Sinop-Santarem Road). Rio Teles-Rio Pires Tributary, Rio Tapajos Basin., Mato Grosso, Brazil, South America
  • Paratype: Moreira, C. R., et al. 21 May 2002. Copeia. 2002 (2): 428, fig. 1.
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Ecology

Habitat

Environment

pelagic; freshwater; depth range 0 - 2 m (Ref. 42626)
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Conservation

Threats

Not Evaluated
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