This species was previously
identified as Chaetostoma fischeri or C.
microps in western
Ecuador but Lujan et al. (2015c) indicate that C.
fishcheri occurs in Panama and not Ecuador and
C. microps is restricted to drainages in
eastern Ecuador. Description: 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
in piedmont elevations approximately 100 to 650 above
sea level. Aquarium Care: Will need
a good water flow in the aquarium with a sand substrate
and plenty of hiding places. Diet:
Great algae eater, but you will have to subsidise
this food with algae wafers and vegetable foods such
as cucumber, zucchini and lettuce. Will also except
tablet and worm foods. Sexual Differences:
Males have better colour, a broader head and lips
and adult males possess longer ventral fins than the
As the thumbnail images show, this species has a variation
in colour markings between individuals.
South America:Pacific Coast drainages of western Ecuador
and northwestern Peru, including (from north to south)
the Esmeraldas, Guayas, Santa Rosa, and Tumbes river
Jr., 2007. Checklist of catfishes, recent and fossil
(Osteichthyes: Siluriformes), and catalogue of siluriform
primary types. Zootaxa 1418:1-628. Froese, R. and D. Pauly.
Editors. 2021. FishBase. World Wide Web electronic
publication. www.fishbase.org, ( 05/2021 ). 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. Windsor, Aquirre. Freshwater
Fishes of Western Ecuador.