Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Siluriformes
(Catfish) > Loricariidae
(Armored catfishes) > Ancistrinae
Etymology: Chaetostoma: Greek, chaite = hair + Greek, stoma = mouth (Ref. 45335); bifurcum: From the Latin adjective bifurcum, meaning two-pronged, in reference to the two evertible cheek odontodes characteristic of this species.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; demersal. Tropical
South America: Pacific Coast drainages of western Ecuador and northwestern Peru, including (from north to south) the Esmeraldas, Guayas, Santa Rosa, and Tumbes river drainages.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 14.0 cm SL male/unsexed; (Ref. 104727)
Morphology | Morphometrics
Chaetostoma bifurcum is distinguished from all congeners along along the Pacific Coast of South America except C. palmeri and C. paucispinis by having only 1 or 2 evertible cheek odontodes (vs. 3-6); from C. niveum, C. palmeri, C. patiae, and C. paucispinis by having most frequently 4 branched rays on anal fin (vs. 5); from C. palmeri and C. paucispinis by having body with black, indistinct, vertically elongate, irregularly broken or complete bars K to O width of orbit in living adults (vs. body uniform or with transverse cross-bars wider than two times orbit centered on dorsal midline); and from C. paucispinis by having 8 branched rays on dorsal fin (vs. 9) (Ref. 104727).
Found in piedmont elevations approximately 100 to 650 masl (Ref. 104727).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Lujan, N.K., V. Meza-Vargas, V. Astudillo-Clavijo, R. Barriga-Salazar and H. López-Fernández, 2015. A multilocus molecular phylogeny for Chaetostoma Clade genera and species with a review of Chaetostoma (Siluriformes: Loricariidae) from the Central Andes. Copeia 103(3):664-701. (Ref. 104727)
IUCN Red List Status (Ref. 119314)
CITES (Ref. 115941)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg 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=0.01148 (0.00491 - 0.02682), b=3.06 (2.85 - 3.27), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Resilience (Ref. 69278
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .