Dorsal spines (total): 1; Dorsal soft rays (total):
7; Anal spines: 1; Anal soft rays: 4. Pseudancistrus
corantijniensis is distinguished from non-derived
Pseudancistrus and other Ancistrini by the
presence of hypertrophied odontodes along the snout
in males as well as in females and quite early in
ontogeny. Pseudancistrus corantijniensis
is diagnosed from derived Pseudancistrus
on the basis of colouration: whitish spots very small,
crowded and faint (especially in preserved specimens)
on the snout to the posterior border of the eyes and
the anterior border of the cleithrum, becoming abruptly
larger (at least 1 mm in diameter even in young specimens),
more spaced and more visible on the posterior part
of the head. Colouration: Large whitish
spots continue along the body with a slight and gradual
increase in size posteriorly. A single large whitish
spot is generally present on each dorso-lateral plate
posterior to the pelvic-fins. Pseudancistrus barbatus
and P. depressus have smaller whitish spots
covering the body and the spots increase slightly
and gradually in size from snout to caudal peduncle
rather than displaying an abrupt spot size reduction
posterior to the eyes as in P. corantijniensis.
the whitish spots increase gradually in size from
the snout to caudal peduncle, yet they become bigger
and hazier than in the other derived Pseudancistrus.
In the latter species, larger spots are often not
round and can cover more than one plate. Aquarium
Care: Not the easiest species to maintain
in the aquarium as it will need pristine water conditions
with well filtered water which should not be too hard.
Warm water should be the norm. Adult males are very
territorial and will not get on with other large Loricariid
catfish. Sexual Differences: Males
have a broad head and posses long bristles along the
edge of the snout. Diet: Aufwuch
grazer, mainly vegetarian, with lettuce, spinach,
cucumber and courgette (zucchini), vegetarian flake
and tablets. Will eat other foods also such as insect
larvae, zooplankton and soft wood but will need to
be kept on a mainly green diet.
Brazil, Suriname. Known from middle and lower Corantijn
De Chambrier, S. and
J.I. Montoya-Burgos, 2008. Pseudancistrus
corantijniensis, a new species from the Guyana Shield
(Siluriformes: Loricariidae) with a molecular and
morphological description of the Pseudancistrus barbatus
group. Zootaxa 1918:45-58. Froese, R. and D. Pauly. Editors.
2016. FishBase. World Wide Web electronic publication.
www.fishbase.org, ( 01/2016 ). Seidel, I.
2008. Back to Nature guide to L-catfishes, Ettlingen,
Germany 208 p.