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Tetragonopterus denticulatus  Silva, Melo, Oliveira & Benine, 2013

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Tetragonopterus denticulatus
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drawing shows typical fish in this Family.

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);  denticulatus: The specific name denticulatus, from Latin, refers to the presence of small teeth on the dentary, a condition distinguishing the species from its congeners.

Environment / Climate / Range Ecology

Freshwater; benthopelagic.   Tropical

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

South America: middle Rio Araguaia in Brazil.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 6.2 cm SL male/unsexed; (Ref. 93280)

Short description Morphology | Morphometrics

Dorsal soft rays (total): 11; Anal soft rays: 33 - 37. Distinguished from other congeners except Tetragonopterus anostomus by having five principal teeth in the dentary (vs. four) as well as by having relatively smaller teeth of the dentary with pointed cusps (v. robust teeth with somewhat rounded cusps). Differs from T. anostomus by having terminal position of the mouth (vs. subsuperior). Can be diagnosed from T. anostomus and T. araguaiensis by having 13-14/8-9 gill rakers on the upper and lower limbs of the first gill arch (vs.17-20/10-12); from T. argenteus by having 8 predorsal scales (vs. 12-16); from T. carvalhoi by the presence of a rounded dark spot on the caudal peduncle (vs. a lozenge-shaped dark spot on the caudal peduncle); and from T. rarus by the lack of dark longitudinal stripes on the lateral surface of the body (vs. the presence of such stripes) (Ref. 93280).

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, 2013. Morphological and molecular evidence for two new species of Tetragonopterus (Characiformes: Characidae) from central Brazil. J. Fish Biol. (Ref. 93280)

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=0.02188 (0.00844 - 0.05670), b=2.99 (2.77 - 3.21), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic Level (Ref. 69278):  3.2   ±0.4 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278):  .
Vulnerability (Ref. 59153):  Low vulnerability (10 of 100) .