One of the species in the
so called "Elegans group" and it can be
difficult at times to be able to identify to species.
The problem stemmed from the first description which
did not mention any characteristics. The first specimens
captured were very small and the Holotype was only
23mm from the Surinam-Brokopondo, Surinam River system.
There was also 6 paratypes which were smaller and
are housed in the RMNH (4) and the ZMA (2). This Corydoras
is not very common in the hobby.
Lineage: Part of the so called "Elegans
Group" which would place it in Lineage 5. A revision
in the future could involve the resurrection of the
genus name Gastrodermus (Cope, 1878), with
the designated type species: C. elegans.
Can sometimes be difficult to identify, has two white
stripes along the body with a blackish stripe splitting
them. All fins have a yellow tinge. Aquarium
Care: This is akin to most of this genus,
very peaceful, and would be best housed with small
to medium sized tankmates such as Tetras, Rasboras
and Danios or in a species tank for breeding purposes.
Best to purchase 6 individuals or more as they will
be happier in a group. Diet: Readily
accepts a mixed and varied diet which includes granular
foods, tablet food, frozen bloodworm and a good quality
The first thumbnail image depicted is a wild specimen
which was captured by the image contributor in the
Gran Rio a river in Suriname and is considered to
be the true C. nanus.
Suriname; Maroni River basin. French Guiana; Iracoubo
Male: 4.5cm (1¾ins)
Female: 5.0cm (2ins)
Markos & Taylor, Martin. (2011). Evolution,
ecology and taxonomy of the Corydoradinae revisited. Fuller, Ian A.M. & Evers, Hans-Georg:
Identifying Corydoradinae Catfish. 2005. 384 p. Ian A. M. Fuller & Hans-Georg Evers (2011).
Identifying Corydoradinae Catfish Supplement 1. Ian
Fuller Enterprises. Nijssen H. & Isbrücker I.J.H.:
1980, A review of the Genus Corydoras Lacepede, 1803.
(Pisces, Siluriformes, Callichthyidae) 22p