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Siluriformes (Catfishes) >
Loricariidae (Armored catfishes) > Hypostominae
Etymology: Baryancistrus: Greek, barys = heavy + Greek, agkistron = hook (Ref. 45335); beggini: Named for Chris Beggin, for his financial support of this research, ethical ornamental fish business practices, and influence on the professional development of the first author.
Eponymy: Chris D Beggin, of Nashville, Tennessee. owns a fish and reptile retail outlet called The Aquatic Critter. He was honoured and thanked “…for his financial support of the authors’ research, ethical ornamental-fish business practices, and influence on [...] (Ref. 128868), visit book page.
Entorno: milieu / zona climática / rango de profundidad / gama de distribución
Ecología
; agua dulce pelágico. Tropical
South America: Venezuela and Colombia.
Tamaño / Peso / Edad
Madurez: Lm ?  range ? - ? cm
Max length : 8.1 cm SL macho / no sexado; (Ref. 80502)
Descripción breve
Claves de identificación | Morfología | Morfometría
Espinas dorsales (total) : 2; Radios blandos dorsales (total) : 7; Espinas anales: 1; Radios blandos anales: 3 - 4. This species is distinguished from all its congeners by having the last dorsal-fin ray adnate with adipose fin via a posterior membrane that extends beyond the preadipose plate up to half the length of the adipose-fin spine (vs. membrane separated from preadipose plate by up to two plates or stopping at preadipose plate); further differs from B. niveatus and B. longipinnis by having a naked abdomen (vs. partially plated), and from B. demantoides by having fewer premaxillary teeth (8-36 vs. 34-54, respectively) (Ref. 80502).
Body shape (shape guide): elongated.
This species is collected from the interstices of granitic bedrock and boulders that constitute exposed portions of the Guyana Shield. Apparently feeds on periphyton and associated microfauna that are abundant on surfaces and undersides of rocks in this habitat (Ref. 80502).
Ciclo vital y comportamiento de apareamiento
Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva
Lujan, N.K., M. Arce and J.W. Armbruster, 2009. A new black Baryancistrus with blue sheen from the Upper Orinoco (Siluriformes: Loricariidae). Copeia 2009(1):50-56. (Ref. 80502)
Situación en la Lista Roja de la UICN (Ref. 130435: Version 2025-2 (Global))
Amenaza para el ser humano
Harmless
Usos humanos
Herramientas
Informes especiales
Descargar XML
Fuentes de Internet
Estimaciones basadas en modelos
Índice de diversidad filogenética (Referencia 82804) |
PD50 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.01549 (0.00729 - 0.03291), b=2.96 (2.79 - 3.13), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
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Vulnerabilidad pesquera (Ref. 59153) |
Low vulnerability (24 of 100). 🛈 |