It was initially thought that
the gold-yellow forms found in imports were males
and they subsequently went for higher prices, but
they tended to lose this colouration after a short
time in captivity. Description:
Can be distinguished from P.
nudiventris by having a plated abdomen (naked in P.nudiventris),
uniformly dark or clear brown or mottled ( bluish
spots in P. nudiventris ), shorter interbranchial
distance (39-56% in HL vs. 24.9-39.5% in P. aurantiacus),
wider interorbital distance (38.5-43.1% vs. 26.8-38%
in HL in P. nudiventris) Parancistrus
nudiventris also has buccal teeth more conspicuous
than in P. aurantiacus. Main skeletal differences
include the presence of a strong condyle on the lateral
ethmoid for articulation with the metapterygoid in
P. nudiventris (not seen in P. aurantiacus);
anguloarticular processes short in P. nudiventris
(long in P. aurantiacus); opercle with odontodes,
partly exposed in P. nudiventris (completely
embedded in skin in P. aurantiacus). This
genera have a broad and flattened body with large
scutes. The dorsal and adipose fin is connected with
a membrane and they have very large gill openings.
Aquarium Care: Only fairly territorial
while youngsters prefer to rest under pieces of wood
and on to rockwork. Adults rest on the substrate in
hiding places. Sexual Differences:
Males posses a broader head and more strongly bristled
pectoral spines. The bristles on the posterior of
the males scutes are elongated when sexually mature.
Diet: Omnivore. A varied diet with
both vegetable and other foods such as tablet, live
and frozen.
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