Overview

Comprehensive Description

Biology

Affinities: most similar to B. huloti from the Congo River basin, from which it differs in the extension of the lateral band onto the median caudal fin rays, presence of a humeral spot and fewer scales (4.5-5.5 vs 6.5) in transverse series between lateral line and dorsal fin origin (Ref. 80290).
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Distribution

Range Description

A Lower Guinea endemic, restricted to the Ogowe and Como River basins.
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Africa: Lower Guinea endemic, restricted to the Ogowe and Como River basins in Gabon (Ref. 80290).
  • Paugy, D. 1984 Characidae. p. 140-183. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ORSTOM, Paris and MRAC, Tervuren. Vol. 1. (Ref. 5331)
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West-central Africa: Gabon.
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Physical Description

Morphology

Anal spines: 0; Analsoft rays: 21 - 22
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Size

Max. size

7.0 cm SL (male/unsexed; (Ref. 80290))
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Diagnostic Description

Diagnosis: 4.5 scales between lateral line and dorsal fin origin; 18-19 anal fin branched rays; flanks with dark lateral pigment band from opercular margin to caudal fin; humeral spot present (Ref. 80290). Description: body moderately robust, greatest body depth 35-38% of SL and head length 30-33% of SL; mouth terminal to slightly superior, lower jaw prominent, its depth about 1.5x that of upper jaw; premaxilla with 2 teeth in outer row each bearing 3-5 cusps, 4 teeth in inner row each bearing 5-7 cusps; dentary with 4 teeth in outer row each bearing 5-7 cusps, a monocuspid inner dentary tooth present posterior to outer row teeth; lateral line canal complete, 25-27 tubes, ultimate canal-bearing scale separated from caudal fin rays by 2-3 non-canal-bearing scales; anal fin with 3 unbranched and 18-19 branched rays (Ref. 80290). Coloration: flanks yellow-silver; broad distinct dark lateral band more or less continuous from opercular margin to posterior margin of median caudal fin rays; ovoid humeral spot often present in larger individuals; dorsum with diffuse pigmentation, somewhat darker than ventral half of body, tending toward multiple faint lateral bands in larger individuals; fins generally dusky to yellowish in life (Ref. 80290).
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
This species is pelagic.

Systems
  • Freshwater
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Environment

pelagic; freshwater
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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
LC
Least Concern

Red List Criteria

Version
3.1

Year Assessed
2010

Assessor/s
Moelants, T.

Reviewer/s
Brummett, R., Mbe Tawe, A.N., Dening Touokong, C., Reid, G.M., Snoeks, J. Staissny, M., Moelants, T., Mamonekene, V., Ndodet, B., Ifuta, S.N.B., Chilala, A., Monsembula, R., Ibala Zamba, A., Opoye Itoua, O., Pouomogne, V., Darwall, W. & Smith, K.

Contributor/s

Justification
The species is widespread within the Central Africa assessment region and is assessed as Least Concern.
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Population

Population
No information available.

Population Trend
Unknown
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Threats

Major Threats
There is no information available on threats to this species.
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Least Concern (LC)
  • IUCN 2006 2006 IUCN red list of threatened species. www.iucnredlist.org. Downloaded July 2006.
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Management

Conservation Actions

Conservation Actions
None known.
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Relevance to Humans and Ecosystems

Benefits

Importance

fisheries:
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