Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Siluriformes
(Catfish) > Bagridae
Etymology: Hemibagrus: Greek, hemi = the half + Mozarabic, bagre, Greek, pagros = a fish, Dentex sp. (Ref. 45335); semotus: From the Latin adjective 'semotus', meaning pushed aside, in reference to the relatively large distance between the dorsal and adipose fins.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; demersal. Tropical
Asia: Padas River drainage and the shorter coastal rivers draining the western face of the Crocker Range in northern Borneo, Sabah, Malaysia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 19.9 cm SL male/unsexed; (Ref. 93057)
Morphology | Morphometrics
soft rays: 12 - 13;
Vertebrae: 43 - 44. Differs from Hemibagrus baramensis in having a greater dorsal to adipose distance
(8.2-10.2% SL vs. 4.7-8.6), an anal fi n with a straight distal margin, imparting a more rhomboidal appearance (vs. with a convex distal margin, imparting a more rounded appearance)
and the upper lobe of the caudal fin regularly tapering (vs. rounded posteriorly); from H. sabanus in having a smaller adipose fin located further away from the dorsal
fin (length of adipose-fin base 19.3-3.5% SL vs. 8.9-34.3; dorsal to adipose distance 8.2-10.6% SL vs. 1.2-4.4), a deeper caudal peduncle (depth 9.6-11.3% SL vs. 7.2-9.4), and a shorter outer mandibular barbel (81.9-120.1% HL vs. 127.5-162.1) (Ref. 93057).
Inhabits slow-flowing streams with turbid water and a substrate of mud and gravel at elevation.
Feeds mainly on arthropods (Ref. 93057).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Ng, H.H. and M. Kottelat, 2013. Revision of the asian catfish genus Hemibragus Bleeker, 1862 (Teleostei: Siluriformes: Bagridae). Raffles Bull. Zool. 61(1):205-291. (Ref. 93057)
IUCN Red List Status (Ref. 120744)
CITES (Ref. 118484)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass 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=0.00977 (0.00438 - 0.02182), b=3.00 (2.82 - 3.18), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.4 ±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 vulnerability (36 of 100) .