(2) Manuel de Jesús Hernández
Similar looking to P.
has a vermiculated pattern to the stomach, hence the
common name whereas P. pardalis has spots.
This species has also been introduced to the Philippines
alongside P. pardalis probably from unwanted
aquarium specimens. The thumbnail images shows a species
caught by the contributor in San Antonio, Texas in
the U.S.A. and is not indigenous to this country.
Aquarium Care: Whatever the status
of this species it will be reasonably peaceful, if
large species, which will need a good sized aquarium
starting of with a 3 footer ( 90cm) when small and
progressing to a larger tank with good external filtration
to facilitate a good oxygen content, as it excretes
copious amounts of waste if fed properly on vegetable
matter. If the water quality is not adhered to, small
holes can appear in the fin membranes. You will notice
when your water quality is not up to the mark as they
"hang" in the water just of their fins,
from the substrate, which means 'get that water change
done'. It is kind to plants in the aquarium, the only
problem is when it gets bigger and can uproot them
in its conquest around the tank. Very hardy species
which will do well in normal aquarium temperatures.
You can identify a Pterygoplichthys species
from Hypostomus for example due to the many
more rays in the dorsal fin, which can be up to 10
or over. They also have nasal flutes on the nose.
Diet: They are mostly vegetarian with algae
being their number one source of food but to keep
a large fish fed on algae alone is impossible so you
can feed also, spinach, blanched lettuce, cucumber,
courgette (zucchini) and also non veg food such as
tablets and prawns. Remarks:
The last image has the belly pattern looking correct
for this species but hybrids that are most likely
also present in Mexico can have the same belly pattern
(Karsten S. 2019). The genus name has now been reclassified
to Pterygoplichthys from Liposarcus
due to the work carried out by J.W. Armbruster
2004. There are still some publications that still
use Liposarcus as the preferred genus name.
Vermiculated sailfin catfish
Madeira River basin: Bolivia and Brazil; introduced
in Asia; established in Florida. Type locality:
Rio Madeira, système de l’Amazonas, Restauracão,
2004. Phylogenetic relationships of the suckermouth
armoured catfishes (Loricariidae) with emphasis
on the Hypostominae and the Ancistrinae. Chavez, J.M., R.M. de la Paz, S.K. Manohar,
R.C. Pagulayan and R. Carandang VI, 2006.
New Philippine record of south american sailfin catfishes
(Pisces: Loricariidae). Zootaxa 1109:57-68. Ferraris, C.J. Jr., 2007. Checklist
of catfishes, recent and fossil (Osteichthyes: Siluriformes),
and catalogue of siluriform primary types. Zootaxa
1418:1-628. Schönherr, Karsten. Inaturalist
2019. Seidel, I. 2008. Back to Nature guide
to L-catfishes, Ettlingen, Germany 208 p.