Classification / Names
Noms communs | Synonymes | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinoptérygiens (poissons à nageoires rayonnées) >
Characiformes (Characins) >
Characidae (Characins) > Tetragonopterinae
Etymology: Tetragonopterus: Greek, tetra = four + Greek, gonia = angle + Greek, pteron = wing, fin (Ref. 45335); araguaiensis: The specific name araguaiensis is in reference to the major drainage of the type-locality, the Rio Araguaia, a large tributary of the Amazon basin, central Brazil.
Environnement / Climat / Gamme
Écologie
; eau douce benthopélagique. Tropical, preferred ?
South America: middle portion of the Rio Araguaia in Brazil.
Taille / Poids / Âge
Maturity: Lm ?  range ? - ? cm
Max length : 6.3 cm SL mâle / non sexé; (Ref. 93280)
Description synthétique
Morphologie | Morphométrie
Rayons mous dorsaux (Total): 11; Rayons mous anaux: 37 - 40. Diagnosed from all congeners except Tetragonopterus anostomus by the number of gill rakers on the upper and lower limbs of the first gill arch (18-20/10-12 vs. 12-14/8-10, respectively). Differs from T. anostomus byhaving terminal position of the mouth (vs. subsuperior). Can be futher distinguished from T. anostomus and T. denticulatus in the number of principal teeth in the dentary (four vs. five or six) and also by having relatively robust teeth with blunted cusps (vs. relatively smaller teeth with somewhat sharper cusps); from T. argenteus by the number of predorsal scales (7-9 vs. 12-16); from T. carvalhoi by having a rounded spot on the caudal peduncle (v. a lozenge-shaped spot); and from T. rarus by the lack of dark stripes on the lateral surface of the body (vs. the presence of such stripes) (Ref. 93280).
Life cycle and mating behavior
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
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)
Statut dans la liste rouge de l'IUCN (Ref. 115185)
CITES (Ref. 94142)
Not Evaluated
Menace pour l'homme
Harmless
Utilisations par l'homme
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