This of course is a predator which needs plenty of
hiding places such as pipes and caves, as they like
to hide during the day. The tank should be moderately
lit with floating plants to keep the light down. A
gravel substrate is recomended. Generally the genus
Cephalosilurus is considered as very territorial,
this particularly applies to the intra species aggressiveness.
C. apurensis does not defend acrimoniously
its own quiescent place, but also the surrounding
area. Weaker species in the same tank are tormented
for a long time until they perish due to bite injuries
and the continuing stress situation. Even in very
large aquariums therefore the socialisation with other
species, in addition with other Cephalosilurus
species is not possible. Diet: Will
only eat live foods when first introduced to the aquarium
but can be weaned off this and fed with shrimps, worms,
thawed out smelt, fillets of fish and tablet foods.
Update Dec. 2021:
(Shibatta, Oscar A. et al, Abstract) Lophiosilurus
is a monotypic genus represented by L. alexandri,
a species endemic to the São Francisco river
basin, Brazil. In previous phylogenetic analyses,
the genus has been recovered as the sister group of
Cephalosilurus. However, few species of Cephalosilurus
or few characters were included in those studies.
Thus, the current study aims to test the monophyletic
hypothesis of the genera Lophiosilurus and
Cephalosilurus with a more comprehensive
phylogenetic analysis, including all Cephalosilurus
species and a representative number of characters.
Phylogenetic analyses of 18 terminal taxa (15 ingroups
and three outgroups) were conducted based on a combined
75 character matrix, including 70 discrete morphological
characters concerning osteology and neuroanatomy,
four continuous characters, and the geometric morphometry
of the head. The monophyly of the family Pseudopimelodidae
was highly supported, and Cephalosilurus
is synonymized with Lophiosilurus.
The recovered phylogeny of the genus was (L. albomarginatus
, L. nigricaudus, L. apurensis, L. fowleri,
and L. alexandri). Remarks:
apurensis is still found on some
online searches as Cephalosilurus apurensis.
Ros, Christopher &
Ros, Wolfgang (2007):
Cephalosilurus apurensis - Ein gefräßiger
Lauerräuber, aber nicht ohne Charme, in:
„Die Aquarien- und Terrarienzeitschrift“
(Datz) 60 (5): 38-42. ScotCat Article:
apurensis - a
voracious ambushing predator but not without charm Oscar A. Shibatta, Lucas
R. Jarduli, Vitor P. Abrahão & Lenice Souza-Shibatta.
(2021). Phylogeny of the Neotropical Pacman catfish
genus Lophiosilurus (Siluriformes: Pseudopimelodidae).
Neotrop. ichthyol., 19 (4).