Overview

Comprehensive Description

Biology

Occurs in clear water rocky rapids, with thick sand on the bottom. Forms small schools of about 10-15 individuals actively swimming against fast flowing waters below a one meter high fall (Ref. 81197).
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Distribution

Rio Curuá, rio Xingu basin, Para State, Brazil.
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South America: Rio Curuá, a tributary of rio Iriri, rio Xingu basin in Brazil.
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Physical Description

Morphology

Dorsal soft rays (total): 10; Analsoft rays: 21 - 23; Vertebrae: 36 - 38
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Size

Max. size

4.1 cm SL (male/unsexed; (Ref. 81197))
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Diagnostic Description

A conspicuous dark blotch present at the humeral region. Scales rows between dorsal-fin origin and anal-fin origin 7-8. Mature males with anal-fin gland cup-shaped, its lower part much more developed than the upper (Ref. 81197).Description: Dorsal-fin rays ii,8; anal-fin rays iv,17-19; pectoral-fin rays i,11-12; pelvic-fin rays i,7 (Ref. 81197).
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Ecology

Habitat

Environment

benthopelagic; freshwater
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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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