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Tetragonopterus anostomus  Silva & Benine, 2011

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Tetragonopterus anostomus
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Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Characiformes (Characins) > Characidae (Characins) > Tetragonopterinae
Etymology: Tetragonopterus: Greek, tetra = four + Greek, gonia = angle + Greek, pteron = wing, fin (Ref. 45335);  anostomus: The specific epithet is a compound name derived from Greek ano-, meaning upward, above; and stoma, meaning mouth, in reference to the position of the mouth (Ref. 87186).

Environment / Climate / Range Ecology

Freshwater; pelagic.   Tropical; 14°S - 15°S, 50°W - 51°W

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

South America: Brazil. Known from the type locality, rio Preto, State of Goiás, Nova Crixás, and lagoa marginal at the municipality of Cocalinho, Mato Grosso, rio Araguaia basin, central Brazil (Ref. 87186).

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 5.8 cm SL male/unsexed; (Ref. 96868)

Short description Morphology | Morphometrics

Tetragonopterus anostomus is distinguished from congeners by having a superior mouth (vs. terminal mouth) with relatively smaller and numerous teeth in the inner row of premaxilla (5–7 vs. always 5, respectively) and dentary (5 vs. 4, respectively), and by the number of gill rakers on the lower limb (18–19 vs. 12–14 respectively) of the first branchial arch. Additionally, T. anostomus is distinguished from congeners by having a comparatively enlarged maxilla. Tetragonopterus anostomus is also distinguished from T. argenteus by the number of predorsal scales (8 vs. 12–17, respectively); from T. rarus by the absence of dark stripes on the lateral surface of the body (vs. presence), and from T. carvalhoi by having a rounded spot vs. a lozenge-shaped spot on caudal peduncle (Ref. 87186).

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. and R.C. Benine, 2011. A new species of Tetragonopterus Cuvier, 1816 (Characiformes, Characidae, Tetragonopterinae) from the upper rio Araguaia, Central Brazil. Zootaxa 2911:50-56 (Ref. 87186)

IUCN Red List Status (Ref. 115185)

CITES (Ref. 108899)

Not Evaluated

Threat to humans

  Harmless




Human uses

FAO(Publication : search) | FisheriesWiki |

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Internet sources

BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | Fishes of Iran | Fishtrace | GenBank(genome, nucleotide) | GloBI | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Scirus | SeaLifeBase | Tree of Life | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5020   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00514 - 0.02450), b=3.04 (2.87 - 3.21), in cm Total Length, based on all LWR estimates for this body shape (Ref. 93245).
Trophic Level (Ref. 69278):  3.2   ±0.4 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278):  High, minimum population doubling time less than 15 months ().
Vulnerability (Ref. 59153):  Low vulnerability (10 of 100) .