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 recommended. Generally the genus
Cephalosilurus is considered as very territorial,
this particularly applies to the intra species aggressiveness.
This is one of the smallest members of this genus
so will not be so problematic to keep with other species.
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. The species depicted
was collected by the image contributor in the Potaro
River, Guyana and occurred over sand and gravel partially
covered with mud, leaves and dead wood. 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,
is synonymized with Lophiosilurus.
The recovered phylogeny of the genus was (L. albomarginatus
, L. nigricaudus, L. apurensis, L. fowleri,
and L. alexandri). Remarks:
albomarginatus is still found on
some online searches as Cephalosilurus albomarginatus.
Tukeit, Guyana. Type locality: Tukeit,
2003. Pseudopimelodidae (Bumblebee catfishes, dwarf
marbled catfishes). p. 401-405. In R.E. Reis, S.O.
Kullander and C.J. Ferraris, Jr. (eds.) Checklist
of the Freshwater Fishes of South and Central America.
Porto Alegre: EDIPUCRS, Brasil. Froese, R. and D. Pauly. Editors.
2017. FishBase. World Wide Web electronic publication.
www.fishbase.org, ( 10/20/17 ). 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).