Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Siluriformes
(Catfish) > Trichomycteridae
(Pencil or parasitic catfishes) > Stegophilinae
Etymology: Henonemus: Greek, enioi, -ai, -a = sometimes, some + Greek, nema = filament (Ref. 45335); triacanthopomus: Name from the Greek 'tri' (three), 'acanthos' (spine), and 'poma' (opercle) referring to the maximum number of odontodes found in both opercles of the adult individuals, apparently a unique character among the species of the genus.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic. Tropical
South America: Venezuela.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 9.4 cm SL male/unsexed; (Ref. 57442)
Morphology | Morphometrics
Diagnosis: Differs from its congeners by having three or asymmetrically 4 opercular odontodes in specimens longer than 8 cm SL; a blackish ventral lobe of caudal fin; a row of mid-lateral dark blotches above the lateral line deflected dorsally on caudal peduncle; five interopercular odontodes inserted in the main series; and, lower jaw teeth arranged in seven rows (Ref. 57442).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
DoNascimiento, C. and F. Provenzano, 2006. The genus Henonemus (Siluriformes: Trichomycteridae) with a description of a new species from Venezuela. Copeia 2006(2):198-205. (Ref. 57442)
IUCN Red List Status (Ref. 115185)
CITES (Ref. 115941)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: 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
Trophic Level (Ref. 69278
): 4.6 ±0.8 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months ().
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .