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

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Hypopygus benoneae
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Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > 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 Ecology

Freshwater; benthopelagic; depth range 1 - 1 m (Ref. 93869).   Tropical

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

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

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 9.2 cm TL male/unsexed; (Ref. 93869)

Short description Morphology | Morphometrics

Anal soft rays: 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).

Biology     Glossary (e.g. epibenthic)

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 Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator : Albert, James S. | Collaborators

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. 115185)

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

FAO(Publication : search) | FishSource |

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Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | 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 = 0.5039   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00372 (0.00140 - 0.00985), 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
Resilience (Ref. 69278):  .
Vulnerability (Ref. 59153):  Low vulnerability (10 of 100) .