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> Gymnotiformes (Knifefishes) > Hypopomidae (Bluntnose knifefishes)
Etymology: Hypopygus: Greek, hypo = under + Greek, pyge = tail (Ref. 45335); benoneae: Named for Naraiana Benone who collected the majority of the specimens that served as the basis for the description.
Eponymy: Naraiana Loureiro Benone is a biologist and zoologist who has a bachelor’s degree (2010), and a master’s degree (2012) both awarded by Universidade Federal do Pará, Belem, Brazil, where he is now a PhD student. [...] (Ref. 128868), visit book page.

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

; स्वच्छ जल, अलवण जल बेनथोपिलाजिक; गहराई सीमा 1 - 1 m (Ref. 93869). Tropical

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South America: lower Rio Anapu, lower Amazon basin in Brazil.

आकार / वज़न / Age

Maturity: L_m ? range ? - ? cm
Max length : 9.2 cm TL पुल्लिंग / अलिंग; (Ref. 93869)

Short description पहचान कुंजी | आकृति विज्ञान | मौरफोमैटरिक्स

ऐनल सौफट रेज़: 115 - 134. Diagnosed by the following combination of characters: sixth infraorbital bone absent; 115-134 anal-fin rays; 11-13 pectoral-fin rays; head length 13.7-20.2% of LEA (length to the end of the anal fin); interocular width 26.1-34.5% of HL; caudal filament depth 1.8-6.8% of CFL (caudal filament length; extrascapular canal absent; fourth and fifth mandibular canal absent; 15-16 precaudal vertebrae; 2 transitional precaudal vertebrae; second basibranchial ossified; anterior-most branchiostegal ray absent; second and third mandibular canal present; supraorbital canal present; sixth infraorbital canal absent; 4-6 scales above the lateral line; 5-7 scales below the lateral line; dark oblique bands on the lateral surface of the body present; scales along the middorsal surface of the body present; caudal filament length, 21.2-37.7% of LEA; head depth at the eye, 44.0-62.8% HL; dorsal rami of intermittent branch of anterior lateral line nerve visible as two parallel lines; and pectoral-fin length 45.2-59.3% of HL (Ref. 93869).

Inhabits rainforest streams in shallow areas along the margins (0.6-0.9 m deep and 2.5-18.8 m width) with substrate composed of submerged root-tangle and rafts with leaf litter. Occurs syntopically with Hypopygus lepturus in the Rio Anapu (Ref. 93869).

Life cycle and mating behavior परिपक्व अवधि | पुनरुत्पत्ति | मछलीऔ का अंडे देना | अंडे | Fecundity | लार्वा

Main reference Upload your references | संदर्भ | संयोजक : Albert, James S. | सहयोगीयो

Peixoto, L.A.W., G.M. Dutra, C.D. de Santana and W.B. Wosiacki, 2013. A new species of the elecric fish genus Hypopygus (Gymnotiformes: Hypopomidae) from the Lower Amazon Basin, Brazil. Copeia 2013(2):232-237. (Ref. 93869)

IUCN Red List Status (Ref. 130435: Version 2024-2)

Least Concern (LC) ; Date assessed: 07 November 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

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इंटरनेट स्रोत

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00372 (0.00139 - 0.00994), b=3.06 (2.83 - 3.29), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

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

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

Hypopygus benoneae Peixoto, Dutra, de Santana & Wosicki, 2013