(1) Dennis Barrett (1) David
Can be differentiated from
the genus Parotocinclus by the absence of
an adipose fin. This species is found alongside Corydoras
prionotos and has the same colouration
as these two Callichthyidae species. It has a base
grey colour with a black band with traces of a gold
sheen (hence common name) along the flanks and has
a small hooked shaped growth on the bony plate behind
the head. Rarely imported and is rare in nature due
to pollution of its habitats. Mainly nocturnal and
feeds on algae. Aquarium Care:: Feeds
on plants and roots; in groups of 5 or more individuals;
minimum aquarium size 60 cm. (24ins). Due to the catchment
area in Rio de Janeiro this Otocinclus needs
to be kept in cooler waters. Remarks:
Similar looking to the São Paulo version which
is said to be another species, which alongside O.
flexilis would be placed into a new
genera, Macrotocinclus. Fishbase and The
Catalog of Fishes have this species (although it is
the wrong location) and O. flexilis in the
new genera, Macrotocinclus.
South America: Brazil,
vicinity of Rio de Janeiro. Type locality:
Flüssen bei S. Crux in der umgebung von Rio de
R. and D. Pauly.
Editors. 2009.FishBase. World Wide Web electronic publication.
www.fishbase.org, version (09/2010). Evers, H.-G. & I.Seidel: Mergus,
Baensch Catfish Atlas Volume 1, 1st English edn., 2005.