Overview

Comprehensive Description

Biology

Inhabits shallow, clear water stream located in the Cerrado region; sandy bottom with small rocks and sparse aquatic vegetation (Ref. 72430).
  • Weitzman, S.H. and L. Palmer 1997 A new species of Hyphessobrycon (Teleostei: Characidae) from Neblina region of Venezuela and Brazil, with comments on the putative 'rosy tetra clade'. Ichthyol. Explor. Freshwat. 7(3):209-242. (Ref. 13676)
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Distribution

South America: Upper Xingu River basin.
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Upper Xingú River basin, Brazil.
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Physical Description

Morphology

Dorsal soft rays (total): 19 - 20; Analsoft rays: 22 - 23; Vertebrae: 34 - 35
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Size

Maximum size: 24.5 mm SL
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Max. size

3.2 cm SL (male/unsexed; (Ref. 38376))
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Diagnostic Description

This species is differentiated from its congeners in having the following characters: elongated dorsal fins in males; caudal spot diamond-shaped; humeral spot vertically elongated; maxillary teeth hexacuspidate; anal fin rays 22-23; lateral line scales 30-31 (Ref. 72430).Description: Dorsal fin rays ii,8,I; anal fin rays 22-23 (iii-iv, 19-20); pectoral fin rays I,9; pelvic fin rays I,6-7. Color in life dark gray caudal spot, faintly reaching tip of median caudal fin, anteriorly as a pale stripe continuous with the faint humeral spot; body sides and head golden, mandibular region orange, nostrils red, iris red above, bright metallic blue below; dorsal fin pale crimson with a dark gray line on anterior edge; adipose, pectoral, pelvic, and anal fins orange, a dark gray line on distal margin of anal and another similar line on anterior margin of pelvic; caudal fin yellow, with a bright yellow spot on the base of each lobe (Ref. 72430).
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Ecology

Habitat

Environment

benthopelagic; freshwater; depth range 1 - 2 m (Ref. 72430)
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Conservation

Threats

Not Evaluated
  • IUCN 2006 2006 IUCN red list of threatened species. www.iucnredlist.org. Downloaded July 2006.
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