The members of the Dolichancistrus genus
are very similar to Chaetostoma but with
a completely ossified edge to the snout. They also
have stouter bristles behind the gill cover and longer
pectoral fins and a growth of fine odontodes around
the edges of the mouth. To differentiate this genus,
Dolichancistrus have hypertrophied (elongate)
odontodes on the side of the snout, small eyes
and have 8 or more dorsal fin rays against 7
in the other ancistrins. Also, Dolichancistrus
will develop a single hypertrophied odontodes in the
evertible cheek mass (rarely 2 or 3) vs. many, and
males will develop really long pectoral-fin spines.
Aquarium Care: Conditions the same
as Chaetostoma where they 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
Upper Atrato River basin, Colombia. Type locality:Quebrada La Noche, tributary to the upper
Atrato, approximate height above sea level 550 m;
Ferraris, C.J. 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, ( 06/2021 ). Seidel, I.
2008. Back to Nature guide to L-catfishes, Ettlingen,
Germany 208 p.