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) > Trichomycterinae
Etymology: Trichomycterus: Greek, thrix = hair + Greek, mykter, -eros = nose (Ref. 45335); cachiraensis: Named for its type locality, the municipality of Cáchira, Departamento de Norte de Santander, Colombia.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic. Tropical
South America: Colombia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 10.9 cm SL male/unsexed; (Ref. 83636)
Morphology | Morphometrics
This species differs from its congeners by the following characters: anterior fontanel variably absent; posterior fontanel reduced to a small circular foramen and entirely located on the parieto-supraoccipital (Ref. 83636).
The rivers where the species was captured is of crystalline waters, with huge stones and sandy bottom. Temperature at the time of the collection is 17ºC. This species is associated with Astroblepus sp. One individual has 138 mature ova. Stomach contents include small shrimps and larvae of macroinvertebrates. The forest comprise of plants like the eucalyptus (Eucalyptus globulus), willow (Salix humboldtiana), Rubus floribundus and pine (Cupressus lusitanica) (Ref. 83636).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Ardila Rodríguez, C.A., 2008. Trichomycterus cachiraensis (Siluriformes: Trichomycteridae), nueva especie del Río Cachira, cuencia del Río Magdalena, Colombia. Dahlia (Rev. Asoc. Colomb. Ictiól.) 10:33-41. (Ref. 83636)
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
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00776 (0.00276 - 0.02182), b=3.08 (2.84 - 3.32), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.2 ±0.4 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .