Classification / Names
Noms communs | Synonymes | Catalog of Fishes(Genre, Espèce) | ITIS | CoL | WoRMS | Cloffa
>
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..
Environment: milieu / climate zone / depth range / distribution range
Écologie
; eau douce benthopélagique; profondeur 1 - 1 m (Ref. 93869). Tropical
South America: lower Rio Anapu, lower Amazon basin in Brazil.
Taille / Poids / Âge
Maturity: Lm ? range ? - ? cm
Max length : 9.2 cm TL mâle / non sexé; (Ref. 93869)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Rayons mous anaux: 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
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larves
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)
Statut dans la liste rouge de l'IUCN (Ref. 130435)
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
Articles particuliers
Télécharger en XML
Sources Internet
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00380 (0.00145 - 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).
Niveau trophique (Ref.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
