Overview

Distribution

Range Description

This species is endemic from the Pilcomayo River basin, in Argentina, Bolivia and Paraguay.
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Pilcomaya River basin, La Plata River basin: Argentina and Bolivia.
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South America: Pilcomayo River basin (Ref. 37055). Reported from the upper Paraña (Ref. 56308).
  • Malabarba, L.R. 2003 Subfamily Cheirodontinae (Characins, tetras). p. 215-221. 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. 37055)
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Physical Description

Size

Max. size

4.6 cm SL (male/unsexed; (Ref. 37055))
  • Malabarba, L.R. 2003 Subfamily Cheirodontinae (Characins, tetras). p. 215-221. 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. 37055)
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
O. microcephala is a benthopelagic (ecological region at the lowest level of water body) species. A high natural level of siltation occurs in the river. Over a historical time period, this means that the river is constantly moving laterally. The species prefers slow flowing water.

Systems
  • Freshwater
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Environment

benthopelagic; freshwater
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Molecular Biology and Genetics

Molecular Biology

Barcode data: Odontostilbe microcephala

The following is a representative barcode sequence, the centroid of all available sequences for this species.


No available public DNA sequences.

Download FASTA File
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Statistics of barcoding coverage: Odontostilbe microcephala

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 1
Specimens with Barcodes: 1
Species With Barcodes: 1
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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
2009

Assessor/s
Reis, R & Lima, F.

Reviewer/s
Collen, B., Darwall, W., Ram, M. & Smith, K. (SRLI Freshwater Fish Evaluation Workshop)

Contributor/s

Justification
Assessed as Least Concern due to its wide distribution and the lack of any known major threats across its range.
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Population

Population
This species has a stable population trend at present.

Population Trend
Stable
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Threats

Major Threats
There are no threats currently known to be affecting 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
There are no conservation measures in place.
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