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Gymnotiformes (Knifefishes) >
Hypopomidae (Bluntnose knifefishes)
Etymology: Hypopygus: Greek, hypo = under + Greek, pyge = tail (Ref. 45335); hoedemani: The specific epithet, hoedemani, is a patronym in honour of J. J. Hoedeman for his contributions to Neotropical ichthyology, including the description of H. lepturus, the type species of the genus (Ref. 88778).
Eponymy: Jacobus Johannes Hoedeman (1917–1982) was a Dutch ichthyologist and aquarist. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ecologia
; Água doce bentopelágico. Tropical
South America: Hypopygus hoedemani is known from small terra firme streams and rivers in the Rio Negro and Rio Preto da Eva drainages of the Amazon basin, Brazil (Ref. 88778).
Tamanho / Peso / Idade
Maturity: Lm ? range ? - ? cm
Max length : 5.9 cm TL macho/indeterminado; (Ref. 88778)
Descrição breve
Chaves de identificação | Morfologia | Morfometria
Hypopygus hoedemani is diagnosed from congeners by the following combination of characters: the absence of the sixth infraorbital bone (versus presence in all congeners except H. lepturus and H. minissimus), the total number of anal-fin rays (102–118 versus 136–174 in all congeners, except for H. lepturus and H. minissimus), the length of the caudal filament (31.1–48.1% of LEA versus 48.4–80.9 in H. lepturus), the presence of oblique bands (versus absence in H. minissimus), the presence of scales at midbody (versus absence in H. minissimus), and the dorsal rami of intermittent branch of anterior lateral line nerve visible as two black parallel lines (versus not visible in H. ortegai) (Ref. 88778).
Life cycle and mating behavior
Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
de Santana, C.D. and W.G.R. Crampton, 2011. Phylogenetic interrelationships, taxonomy, and reductive evolution in the Neotropical electric fish genus Hypopygus (Teleostei, Ostariophysi, Gymnotiformes). Zool. J. Linn. Soc. 163:1096-1156. (Ref. 88778)
Categoria na Lista Vermelha da IUCN (Ref. 130435: Version 2024-1)
Ameaça para o homem
Harmless
Utilização humana
Ferramentas
Relatórios especiais
Descarregue XML
Fontes da 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=0.00617 (0.00198 - 0.01923), b=3.06 (2.81 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Nível Trófico (Ref.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
![Image of Hypopygus hoedemani (Hoedeman\](/images/thumbnails/gif/tn_HYPOPOT0.gif "Image of Hypopygus hoedemani (Hoedeman\")
