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Siluriformes (Catfishes) >
Loricariidae (Armored catfishes) > Hypostominae
Etymology: Hypostomus: Greek, hypo = under + Greek, stoma = mouth (Ref. 45335); melanephelis: The specific epithet, melanephelis, from the greek melanos meaning dark or black, and ephelis, meaning freckle, in allusion to the color pattern formed by tiny dark dots along the head and body (Ref. 103391).
Environment: milieu / climate zone / depth range / distribution range
Ecologie
; zoet water benthopelagisch. Tropical
South America: currently known only from the rio Tapajós basin, near Itaituba city, Pará State, Brazil (Ref. 103391).
Grootte / Gewicht / Leeftijd
Maturity: Lm ? range ? - ? cm
Max length : 17.8 cm SL mannelijk / geslacht onbekend; (Ref. 103391)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Dorsale stekels (totaal) : 2; Dorsale zachte stralen (totaal) : 7; Anale stekels: 0; Anale zachte stralen: 5; Wervels: 29. Diagnosis: Hypostomus melanephelis is distinguished from the congeners, except H. interruptus, H. paucimaculatus, H. micropunctatus, H. nigropunctatus, and H. rhantos, by having conspicuous dark, roundish and tiny (smaller than eye pupil) set of dark spots on trunk (vs. medium to large pale or dark spots [larger than eye pupil], or transversally elongated dark spots); Hypostomus melanephelis is distinguished from H. interruptus, H. paucimaculatus, H. micropunctatus, H. nigropunctatus, and H. rhantos by the naked to partially plated abdomen (vs. abdomen completely covered by platelets); it is further diagnosed from H. interruptus by a larger mandibular ramus, 18-22 % HL (vs. 11.6-17.5 % HL; from H. paucimaculatus by having villiform bicuspid non spoon-shaped teeth with the lateral cusps not fused to the mesial tooth (vs. massive spoon-shaped teeth with lateral cusps usually fused to the mesial tooth); from H. micromaculatus by having usually 1 row of spots on each interradial membrane of dorsal fin (vs. 4-5) moderately distant from each other on flanks (vs. densely settled spots); from H. nigropunctatus by having just 1 plate posteriorly bordering supraoccipital (vs. 3); and from H. rhantos by having a more depressed head 49-56 % SL (vs. a more deeper head 64.3-83.2 % HL (Ref. 103391).
Facultative air-breathing in the genus (Ref. 126274); Collection area included different sections of running waters on large extensions of rocky substrate (Ref. 103391).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Zawadzki, C.H., A.S. Oliveira, R.R. de Oliveira and L.H. Rapp Py-Daniel, 2015. Hypostomus melanephelis a new armored catfish species from the rion Tapajós basin, Brazil (Teleostei: Loricariidae). Ichthyol. Explor. Freshwat. 26(1):49-58. (Ref. 103391)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2024-2)
Gevaar voor de mens
Harmless
Gebruik door de mens
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Estimates based on models
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01778 (0.00786 - 0.04025), b=2.89 (2.71 - 3.07), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Weerstandsvermogen (Ref.
120179): Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (12 of 100).
