Classification / Names
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Siluriformes (Catfishes) >
Doradidae (Thorny catfishes) > Doradinae
Etymology: Rhynchodoras: Greek, rhingchos = snout + Greek, doras = skin (Ref. 45335); castilloi: Named for Otto E. Castillo G, who collected much of the type material, for his lifelong dedication to the study and stewardship of his country's rich diversity of freshwater fishes.
Eponymy: Otto E Castillo G is a Venezuelan biologist at the Museum of Zoology, National Experimental University of the Western Llanos Ezequiel Zamora, Venezuela. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ecología
; agua dulce demersal. Tropical
South America: middle to lower Río Apure of the Orinoco basin in Venezuela.
Tamaño / Peso / Age
Maturity: Lm ?  range ? - ? cm
Max length : 8.0 cm SL macho / no sexado; (Ref. 72419)
Short description
Claves de identificación | Morfología | Morfometría
Espinas dorsales (total) : 1; Radios blandos dorsales (total) : 6; Vértebra: 41. Differs from Rhynchodoras xingui by having the following characters: all three tympanal scutes weakly developed (vs. second and particularly third well developed, latter with medial carina); midlateral scutes 34-36 (vs. 33 -34); and anterior midlateral scutes relatively shallow,
depth about one-fifth of corresponding body depth, and with dorsal and ventral laminae weakly developed, lacking distinct serrations along posterior margins (vs. depth about one-third to one-quarter of corresponding body depth, and dorsal and ventral laminae well developed with conspicuously serrated posterior margins). Diagnosed from Rhynchodoras woodsi by having a simple swim bladder (vs. each posterior chamber of
gas bladder expanded into elongate horn-like diverticulum), and tubercles punctate and abundant (vs. tubercles elongate, dashlike, and sparse) (Ref. 72419).
Reported to feed on Trichoptera (Ref. 72419).
Life cycle and mating behavior
Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva
Birindelli, J.L.O., M.H. Sabaj and D.C. Taphorn, 2007. New species of Rhynchodoras from Río Orinoco, Venezuela, with comments on the genus (Siluriformes: Doradidae). Copeia 2007(3):672-684. (Ref. 72419)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Herramientas
Special reports
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Fuentes de Internet
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00528 - 0.02384), b=2.98 (2.80 - 3.16), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Nivel trófico (Ref.
69278): 2.9 ±0.4 se; based on size and trophs of closest relatives
Resiliencia (Ref.
120179): Alto, población duplicada en un tiempo mínimo inferior a 15 meses (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).