Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Actinopteri (ray-finned fishes) > Siluriformes
(Catfishes) > Bagridae
Etymology: Hemibagrus: Greek, hemi = the half + Mozarabic, bagre, Greek, pagros = a fish, Dentex sp. (Ref. 45335); velox: From the Latin for fast, in reference to its habitat (fast-flowing streams and rivers) (Ref. 40801).
Environment: milieu / climate zone / depth range / distribution range
Freshwater; demersal. Tropical
Asia: Sumatra, Indonesia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 35.7 cm SL male/unsexed; (Ref. 40801)
Morphology | Morphometrics
soft rays: 11 - 13;
Vertebrae: 50 - 52. Caudal peduncle depth 6.2-7.5 cm SL; the upper lobe of the caudal fin regularly tapering; genital appendage by a distance of 4.3-5.9% SL; irregular serrations on the posterior edge of the dorsal spine; snout length 33.3-38.9% HL; interorbital distance 29.4-33.9% HL; length of maxillary barbel 198.3-238.2 HL; length of inner mandibular barbel 44.7-52.1% HL; branchiostegal rays 10-11 (Ref. 40801).
Found in upper reaches of rivers, usually in fast-flowing waters with rocky or sandy bottom (Ref. 40801).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Tan, H.H. and H.H. Ng, 2000. The catfishes (Teleostei: Siluriformes) of central Sumatra. J. Nat. Hist. 34:267-303. (Ref. 40801)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00813 (0.00372 - 0.01775), b=2.95 (2.77 - 3.13), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.5 ±0.6 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Moderate to high vulnerability (49 of 100) .