his
cory is like a Corydoras
panda look-alike, the
difference being is that Hoplisoma oiapoquense
(note the genus and specific name changes...see further
below*) has the caudal peduncle spot on the base of
the caudal fin, plus the tail has about 3 bands whereas
C. panda has a clear tail. Apart from that they
are very much alike, but I have found H. oiapoquense
to be a very shy fish, hence the quick and not so great
photo here, as the fish appeared instead of waiting
for it to come nearer, you can still see the main characteristics
in the image.
Hoplisoma
oiapoquense -
Lineage 9
Hoplisoma
oiapoquense
occurs in the wild alongside a long-snouted look-a-likeBrochis
condiscipulus.
The Latin name of condiscipulus actually
means schoolmate pertaining to the fact that they are
together much of the time. You can see in the imge below
the difference in the length of the snout, and of course
this shows in the different lineages of both species.
Hoplisoma oiapoquense is
lineage 9 wheras Brochiscondiscipulus
is lineage8 sub clade 4.
Brochis
condiscipulus
They were imported
into the U.K., as far as I know, about 1996. The
top picture is the male, I think, as the females don't
get very gravid looking or heavy before the spawning
cycle, so sometimes you can make a mistake identifying
them. I was lucky and picked up 2 males and 1 female
from a well known outlet in the north of England in
March 98 and housed them in a 17" x 15" x
15" tank. Every time that I appeared in the fishhouse
they would scatter about the tank and so I decided to
cover the top of the tank to cut down on the light.
About 1 month later,
with the tank being in darkness most of the time, I
did not notice that they had spawned, with about 12
eggs laid on the Java Moss. I had missed the first
spawning as the parents must have ate the fry, so I
took the eggs out to a separate container. The eggs
are a kind of rusty/orange colour and about 2mm in size.
There are a few
variations of this species where there is no banding
in the tail and some that have no black blotch in the
dorsal.
Below is a small
photo gallery of the breeding of Hoplisoma oiapoquense,
just click on the thumbnail to get a larger image.
Picture of egg 2mm with
grains of sand attached to it.
Three youngsters 10 weeks
old.
Youngster at 10 weeks old.
Remarks:
Corydoras oiapoquensis
is placed in Lineage 9, the "short-snouted"
species with the designated type species: C. punctatus.
A revision in the future would constitute the resurrection
of the genus name Hoplosopma (Agassiz, 1846).*As
of the latest revision (Dias
et al 2024) Corydoras oiapoquensis
has now been placed in Lineage 9 and has the new genus
and specific name of Hoplisoma oiapoquense.Still
found on some online sources as Corydoras oiapoquensis.
Common
Name
Stripe Tailed Panda
Synonyms
None
Family
Callichthyidae
Subfamily
Corydoradinae
Distribution
South America:
French
Guiana; Cumuri Creek at left bank of Río Oiapoque
upstream of first rapids of Grande Roche, southwest
of village Oiapoque.
Size
Male: 5.0cm (2ins) Female:
5.5cm (2¼ins)
Temp.
23-25°C (73-77°F)
p.H.
6.0-7.2.
Characteristics
Dorsal 1/7; Anal 1/5; Head
short and compact.
Colouration
Flesh coloured body. Dorsal
fin with black blotch to base. Caudal fin with black
blotch at the base with dark bands. Black band covering
eyes. Adipse fin with a black marking to leading edge.
Aquarium
Care & Compatibility
A tank setup would entail a
soft substrate such as sand or a small gravel and
a nice plant covering around the back and sides of
the aquarium. If housed in a community tank a mixture
of small South American characins or the smaller varieties
of Asian Rasboras would suffice, as larger fishes
would intimidate these shy Cory's, and would stop
them eating and would be therefore detrimental to
their overall health.
Reproduction
As stated above, the tank size,
but a 18" x 12" x 12" would suffice.
When they spawned the tank parameters were a temp.of
77f and a pH of 6.with a GH of 1. As mentioned before
they are apt to eating very small fry, so it is advised
to take the eggs away and introduce the fry back,
if desired, at about 1 month old. They are quite an
easy species to spawn and I was surprised that they
did when the pH was on the low side. A very shy species
and likes to hide in the tank, so give pots etc.for
their comfort.
Diet
The usual fare for adult
Corydoras, a good quality flake food, tablet food,
frozen bloodworm and whiteworm used sparingly.The
fry can be fed brine shrimp from a very early age
and grow quick in the first month, then they are apt
to slow down.
Etymology
oiapoquensis:
Named for the Rio Oiapoque in French Guiana were this
Corydoras gets its name from.
References
Alexandrou,
Markos & Taylor, Martin. (2011). Evolution,
ecology and taxonomy of the Corydoradinae revisited. Angelica C Dias, Luiz F C Tencatt, Fabio F
Roxo, Gabriel de Souza da Costa Silva, Sérgio
A Santos, Marcelo R Britto, Martin I Taylor, Claudio
Oliveira, Phylogenomic analyses in the complex
Neotropical subfamily Corydoradinae (Siluriformes:
Callichthyidae) with a new classification based on
morphological and molecular data, Zoological Journal
of the Linnean Society, 2024;, zlae053.
Burgess, W.E. 1992. Colored Atlas of Miniature
Catfish. Every Species of Corydoras, Brochis &
Aspidoras. T.F.H. Publications, Inc. Neptune City,
New Jersey (USA). 224 p. Ian A. M. Fuller & Hans-Georg Evers
2011, Identifying Corydoradinae Catfish: Aspidoras-Brochis-Corydoras-Scleromystax-C-numbers
& CW-numbers 141p. Ian Fuller Enterprises.
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