he "Jelly Catfish" is again only
a catfish for the more experienced keepers and will do well in
the hands of a big cat lover who knows how to look after large
The Latin name “nigricaudus”
means “black tail” and this more or less tells it
apart from the similar coloured C.
apurensis which is to be found in the Rio Apure
in Venezuela very far away from C. nigricaudus from Suriname.
There are currently four species in this genera, our catfish of
the month C. nigricaudus, C. apurensis, C. albomarginatus
fowleri and they are all very much predators in their
natural habitats and as such in the aquarium also.
- the business
Cephalosilurus is now the valid
name for the earlier genus name Pseudopimelodus. In its
native habitat it occurs in pools and in the backwater of rapids
and fast streams with sand, rocks, and decaying wood on the bottom.
Found together with Bryconops caudomaculatus, Characidium
blennoides, Pimelodella cristata, Leporinus
friderici and Astyanax meunieri
Lateral line complete with a very broad and
depressed head, angular gape. Maxillary
teeth laterally with a backward projection; caudal fin long, lanceolate,
truncated or rounded, never forked. Depressed dorsal fin usually
reaching well beyond half way to the adipose fin, pectoral fin with
6 rays; barbels short, only reaching to the pectoral fins.
Dorsum brown with a pattern of black markings,
fins generally black with a white margin. Caudal
fin with a white margin.
Large tank with good
filtration will work best in a tank with a capacity of approximately
800 litres upward. Not too fussy with tank parameters but
water changes and good husbandry are a must as they are
Will do best on their own with hiding
places if more than one is kept. If kept with other fish they
must be high backed and twice as big as your "Jelly cat"
as they will quickly become a meal if too small. Other large fish
should be mid-water or top species.
meat and after habituation also fillet of fish in enormous portions.
Not known but presumably
the female would have a wider girth.
ScotCat Article: Ros, Wolfgang; Cephalosilurus
nigricaudus and its
similarity to C. apurensis
A sensory line, along the sides of the body.
Maxillery: Pertaining to the upper jaw.
Caudal fin: The tail.
Dorsal fin: The
primary rayed fin(s) on top of the body.
Fleshy finlike projection without
rays, behind the rayed dorsal fin.
Pectoral fins: The paired fins just behind
kephale = head + Greek, silouros = a cat fish
Mol, H.A. Jan, The Freshwater Fishes of Suriname.
BRILL, Leiden Boston, 2012. 889 p.
Ros, Wolfgang (2008): Cephalosilurus
nigricaudus und seine Abgrenzung zu Cephalosilurus apurensis, "Aquaristik
Fachmaganzin & Aquarium heute" (AF) 40 (1), Nr. 199, 34-36.
Froese, R. and D. Pauly. Editors. 2009. FishBase. World
Wide Web electronic publication. www.fishbase.org, version (05/2009).
Wolfgang Ros @