Classificatie / Namen
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Siluriformes (Catfishes) >
Trichomycteridae (Pencil or parasitic catfishes) > Vandelliinae
Etymology: oscarleoni: Name 'oscarleoni' in honor of Oscar Leon Mata, curator of the fish collection of the Museo de Ciencias Naturales in Guanare.
Eponymy: Dr Domenico Agostino Vandelli (1735–1816) was an Italian naturalist who maintained a lengthy correspondence with Linnaeus. [...] (Ref. 128868), visit book page.
Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied
Ecologie
; zoet water benthopelagisch. Tropical
South America: Venezuela.
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ?  range ? - ? cm
Max length : 1.9 cm SL mannelijk / geslacht onbekend; (Ref. 137619)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Dorsale stekels (totaal) : 1; Dorsale zachte stralen (totaal) : 8 - 9; Anale stekels: 2; Anale zachte stralen: 5 - 6; Wervels: 38 - 39. This species is distinguished by the following set of characters: broadly convex hook-shaped flange extending anteriorly from the parietosupraoccipital into the cranial fontanel; teeth on median premaxilla 10; medial teeth on premaxilla 2; scalpelloid teeth 4; dentary teeth 2; posteriorly directed opercular odontodes; opercular odontodes 11-15; slightly forked distal margin of maxilla; free branchiostegal membrane across the isthmus; an anterior osseous flange on the ascending process of opercle; median premaxilla as wide as long; median premaxilla connected to mesethmoid main axis via bilateral dorsal flanges; absence of an anteromedial notch on the mesethmoid; first anal-fin pterygiophore at vertical anterior to haemal spine of 22nd vertebra; vertebrae 38-39; principal dorsal-fin rays 9; parasphenoid being 3× longer than wide; absence of an anteromedial process on autopalatine (Ref. 137619).
Body shape (shape guide): elongated; Cross section: oval.
This species is found in rivers with substrate composed of cobble and gravel or bedrock and sand (Ref. 137619).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Henschel, E., J.N. Baskin, R. Collins and N.K. Lujan, 2024. A revised diagnosis of the blood-feeding candiru genus Paravandellia (Siluriformes: Trichomycteridae: Vandelliinae) with descriptions of three new species. American Museum Novitates 4024:1-36. (Ref. 137619)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))
Gevaar voor de mens
Harmless
Gebruik door de mens
Visserij: van geen belang
Tools
Speciale rapporten
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Internetbronnen
Schattingen op basis van modellen
Fylogenetische diversiteitsindex (Ref. 82804) |
PD50 = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref. 93245). |
Trofisch niveau (Ref. 69278) |
3.1 ±0.5 se; based on size and trophs of closest relatives |
Kwetsbaarheid van de visserij (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |