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Tetragonopterus rarus (Zarske, Géry & Isbrücker, 2004)

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drawing shows typical species in Characidae.


Suriname country information

Common names: [No common name]
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Type locality of Moenkhausia rara, 'Surinam, Marowijne, rapid in Oelemari (Ulemari) River) (Ref. 124043). Known from Corantijn River basin in western Suriname (Ref. 55780). Also Ref. 87186.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/ns.html
National Fisheries Authority: http://www.caricom-fisheries.com/suriname
Occurrences: Occurrences Point map
Main Ref: Zarske, A., J. Géry and I.J.H. Isbrücker, 2004
National Database:

Common names from other countries

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Characiformes (Characins) > Characidae (Characins; tetras) > Tetragonopterinae
Etymology: Tetragonopterus: Name from Greek words: 'Tetra' meaning four; 'gonia' meaning angle; 'pteron' for fin; referring to the evident tetragonal shape of the body (Ref. 124043).
  More on authors: Zarske, Géry & Isbrücker.

Environment: milieu / climate zone / depth range / distribution range Ecology

Freshwater; benthopelagic.   Tropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

South America: western Suriname to nothern Brazil.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 8.5 cm SL male/unsexed; (Ref. 124043)

Short description Morphology | Morphometrics

Dorsal soft rays (total): 9; Anal soft rays: 28 - 33; Vertebrae: 30. This species is distinguished from its congeners by the having longitudinal dark stripes on the lateral surface of the body (vs. absent); differs from all congeners, except T. georgiae, by the number of longitudinal scale rows between lateral line and pelvic-fin origin 4.5-5.5 (vs. 3.5); differs from T. anostomus, T. denticulatus, T. juruena, T. kuluene by the number of principal dentary teeth 4 (vs. 5-6) and by the relatively robust teeth on dentary (vs. sharper teeth); differs from T. anostomus, T. araguaiensis by the number of gill-rakers on the lower limb of the first gill arch 12-13 (vs. 16-20); differs from T. carvalhoi by the shape of the dark mark on the caudal peduncle which is round (vs. lozengular); differs further from T. ommatus by having teeth on the maxilla 2-4 (vs. 7-8) and the dark mark centered on caudal peduncle (vs. mark limited to the posterior portion of caudal peduncle); differs from T. anostomus by the terminal mouth (vs. subsuperior) and from T. anostomus, T. kuluene by the humeral marks 2 (vs. 1); differs from T. argenteus by the predorsal scales 8 (vs. 11-17) and from T. denticulatus by having humeral marks separated by 1 vertical scale row (vs. 3) (Ref. 124043).

Biology     Glossary (e.g. epibenthic)

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Silva, G.S.C., B.F. Melo, C. Oliveira and R.C. Benine, 2016. Revision of the South American genus Tetragonopterus Cuvier, 1816 (Teleostei: Characidae) with description of four new species. Zootaxa 4200(1):1-46. (Ref. 124043)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 24 December 2020

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

FAO(Publication : search) | FishSource |

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