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> 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 ນິເວດວິທະຍາ

; ນ້ຳຈືດ ກ່ຽວກັບ (ຢູ່)ເທິງຊັ້ນພື້ນດິນໃນທະເລເປີດ. Tropical

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South America: western Suriname to nothern Brazil.

ຂະໜາດ / ນ້ຳໜັກ / Age

Maturity: L_m ? range ? - ? cm
Max length : 8.5 cm SL ຕົວຜູ້/ບໍ່ມີເພດ; (Ref. 124043)

Short description ຕົວທີ່ໃຊ້ໃນການຈຳແນກຊະນິດ | ສະລີລະວິທະຍາ | ການວັດແທກຮູບຮ່າງລັກສະນະພາຍນອກຂອງດິນ,ສັດ,ປາ…

ຄີຫຼັງຂອງປາ (ຄີອ່ອນ) (ທັງໝົດ) : 9; ຄີກົ້ນຂອງປາ: 28 - 33; ສັດທີ່ມີກະດູກສັນຫຼັງ: 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).

Life cycle and mating behavior Maturities | ການສືບພັນ | Spawnings | Egg(s) | Fecundities | ຕົວອ່ອນ

Main reference Upload your references | ເອກະສານອ້າງອີງ | ຜູ້ປະສານງານ | ຜູ້ຮ່ວມມື

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

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

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Summary page | ຈຸດໃດໜຶ່ງທີ່ສະແດງຂໍ້ມູນ | ຊື່ສາມັນ | Photos

ແຫຼ່ງອີນເຕີເນັດ

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.02188 (0.00852 - 0.05619), b=3.00 (2.78 - 3.22), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

ຊັ້ນເຂດຮ້ອນ (Ref. 69278): 3.1 ±0.4 se; based on size and trophs of closest relatives

ຄວາມຢືດຢຸ່ນ (Ref. 120179): ສູງ, ປະຊາກອນຕຳ່ສຸດທີ່ໃຊ້ເວລາສອງໜ້ອຍກວ່າ 15 ເດືອນ (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

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Random Species

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Tetragonopterus rarus (Zarske, Géry & Isbrücker, 2004)